probleme affichage avec ie8 (firefox ok)

Bonjour,
Je débute en page html et je tente de créer un modèle pour mes annonces sur ebay.
J'ai créé une page en me servant de codes sources de pages qui m'intéressaient et en utilisant nvu comme éditeur.
Je suis arrivé à un résultat qui me convient dans l'aperçu de l'éditeur.
Je l'ouvre avec Firefox 3.5 : impeccable, tout fonctionne nickel...
Je l'ouvre avec ie8 : la cata, mes colonnes d'images à droite et à gauche ne s'affichent pas et ma galerie centrale devient n'importe quoi !!!
Et avec Chrome, c'est un mélange des 2...
Voici le code en question:
Code:
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <title>Modele_annonce_Accessstory</title>
</head>
<body id="div" style="text-align: center;">
<br>
<img style="width: 70%; height: 110px;"
 src="http://img9.imageshack.us/img9/2378/bandeauaccessstory02.jpg">&nbsp;<a
 href="http://stores.shop.ebay.fr/AcceSSStory"><br>
</a>
<div
 style="font-family: arial; font-size: 10px; color: rgb(128, 128, 128); text-align: center;"><br>
<table
 style="background-color: rgb(51, 51, 51); width: 75%; height: 50px; text-align: left; margin-left: auto; margin-right: auto;"
 border="3" cellpadding="2" cellspacing="2">
  <tbody>
    <tr>
      <td
 style="width: 140px; text-align: center; color: rgb(255, 153, 0); font-weight: bold;">
      <a style="color: rgb(255, 153, 0);"
 href="http://stores.shop.ebay.fr/AcceSSStory/Articles.html_"
 target="_blank">Cat&eacute;gories</a> </td>
      <td
 style="width: 140px; text-align: center; font-weight: bold; color: rgb(255, 153, 0);">
      <a style="color: rgb(255, 153, 0);"
 href="http://stores.shop.ebay.fr/AcceSSStory/Univers.html_"
 target="_blank">Univers</a> </td>
      <td
 style="width: 140px; text-align: center; font-weight: bold; color: rgb(255, 153, 0);">
      <a style="color: rgb(255, 153, 0);"
 href="http://stores.shop.ebay.fr/AcceSSStory/Nos-Garanties.html_"
 target="_blank">Nos Garanties</a> </td>
      <td
 style="width: 140px; text-align: center; color: rgb(255, 153, 0); font-weight: bold;">
      <a style="color: rgb(255, 153, 0);"
 href="http://my.ebay.fr/ws/eBayISAPI.dll?AcceptSavedSeller&amp;sellerid=accessstory&amp;ssPageName=STRK:MEFS:ADDSTR&amp;_trksid=p4634.m350.l1266"
 target="_blank">S'inscrire
&agrave; notre Newsletter</a> </td>
      <td
 style="width: 140px; text-align: center; color: rgb(255, 153, 0); font-weight: bold;">
      <a style="color: rgb(255, 153, 0);"
 href="http://my.ebay.fr/ws/eBayISAPI.dll?AcceptSavedSeller&amp;sellerid=accessstory&amp;ssPageName=STRK:MEFS:ADDSTR&amp;_trksid=p4634.m350.l1250"
 target="_blank">Ajouter
aux Favoris</a> </td>
      <td
 style="width: 140px; text-align: center; color: rgb(255, 153, 0); font-weight: bold;">
      <a style="color: rgb(255, 153, 0);"
 href="http://stores.shop.ebay.fr/AcceSSStory/Nous-Contacter.html_"
 target="_blank">Nous
Contacter</a> </td>
    </tr>
  </tbody>
</table>
<br>
<br>
<br>
<table
 style="border: 3px solid rgb(178, 178, 178); font-family: IMG Love; color: rgb(255, 153, 0); width: 100%; height: 50px; text-align: left; margin-left: auto; margin-right: auto;"
 cellpadding="2" cellspacing="0">
  <tbody>
    <tr>
      <td
 style="text-align: center; background-color: rgb(51, 51, 51);"><big><big><big><span
 style="font-weight: bold; font-family: Verdana;">SKULLCANDY
T.I. GOLD RASTA</span></big></big></big></td>
    </tr>
  </tbody>
</table>
<br>
<br>
<div style="margin: 0px auto;" align="center">
<table style="float: left; width: 20%;">
  <tbody>
    <tr>
      <td style="text-align: center; width: 50%;"><a
 href="http://stores.shop.ebay.fr/AcceSSStory_Rasta_W0QQ_fsubZ816754012QQ_sidZ914630942QQ_trksidZp4634Q2ec0Q2em322">
      <img title="Rasta"
 style="border: 0px solid ; width: 95%; height: 95%;"
 src="http://img232.imageshack.us/img232/1633/rasta.jpg"></a></td>
      <td style="text-align: center; width: 50%;"><a
 href="http://stores.shop.ebay.fr/AcceSSStory_Bling-Bling_W0QQ_fsubZ816756012QQ_sidZ914630942QQ_trksidZp4634Q2ec0Q2em322">
      <img alt="" title="BlingBling"
 style="border: 0px solid ; width: 95%; height: 95%;"
 src="http://img12.imageshack.us/img12/5738/blingblingm.jpg"></a></td>
    </tr>
    <tr>
      <td><img style="width: 95%; height: 95%;" alt=""
 title="Gothic"
 src="http://img198.imageshack.us/img198/3307/gothico.jpg"></td>
      <td><img style="width: 95%; height: 95%;" alt=""
 title="Anarchy"
 src="http://img34.imageshack.us/img34/81/anarchyi.jpg"></td>
    </tr>
    <tr>
      <td><img title="Dragon"
 style="width: 95%; height: 95%;" alt=""
 src="http://img198.imageshack.us/img198/1419/dragonnwv.jpg"></td>
      <td><img style="width: 95%; height: 95%;" alt=""
 title="Manga"
 src="http://img34.imageshack.us/img34/2429/mangaios.jpg"></td>
    </tr>
    <tr>
      <td><img style="width: 95%; height: 95%;" alt=""
 title="Skater"
 src="http://img39.imageshack.us/img39/6948/sk8o.jpg"></td>
      <td><img style="width: 95%; height: 95%;" alt=""
 title="Skull"
 src="http://img34.imageshack.us/img34/6573/skulld.jpg"></td>
    </tr>
    <tr>
      <td></td>
      <td></td>
    </tr>
  </tbody>
</table>
<table style="float: right; width: 20%;">
  <tbody>
    <tr>
      <td style="text-align: center; width: 50%;"><a
 href="http://stores.shop.ebay.fr/AcceSSStory_Casques-Audio_W0QQ_fsubZ816744012QQ_sidZ914630942QQ_trksidZp4634Q2ec0Q2em322"><img
 title="Casques"
 style="border: 0px solid ; width: 95%; height: 95%;" alt=""
 src="http://img39.imageshack.us/img39/8650/casquesaudio.jpg"></a></td>
      <td style="text-align: center; width: 50%;"><a
 href="http://stores.shop.ebay.fr/AcceSSStory_Montres_W0QQ_fsubZ833415012QQ_sidZ914630942QQ_trksidZp4634Q2ec0Q2em322"><img
 title="Montres"
 style="border: 0px solid ; width: 95%; height: 95%;" alt=""
 src="http://img12.imageshack.us/img12/7251/montres.jpg"></a><a
 target="_blank"><br>
      </a></td>
    </tr>
    <tr>
      <td style="text-align: center; width: 50%;"><img
 title="Lunettes" style="width: 95%; height: 95%;" alt=""
 src="http://img198.imageshack.us/img198/8126/lunettesw.jpg"></td>
      <td style="text-align: center; width: 50%;"><img
 title="Caps" style="width: 95%; height: 95%;" alt=""
 src="http://img198.imageshack.us/img198/1773/capst.jpg"><br>
      </td>
    </tr>
    <tr>
      <td style="text-align: center; width: 50%;"><img
 title="Lacets" style="width: 95%; height: 95%;" alt=""
 src="http://img198.imageshack.us/img198/7518/lacets.jpg"></td>
      <td style="text-align: center; width: 50%;"><a><img
 title="Bonnets"
 style="border: 0px solid ; width: 95%; height: 95%;" alt=""
 src="http://img17.imageshack.us/img17/9755/bonnets.jpg"></a><a
 target="_blank" =""><br>
      </a></td>
    </tr>
    <tr>
      <td style="text-align: center; width: 50%;"><a><img
 title="Ceintures"
 style="border: 0px solid ; width: 95%; height: 95%;" alt=""
 src="http://img34.imageshack.us/img34/3718/ceintures.jpg"></a></td>
      <td style="text-align: center; width: 50%;"><a><img
 title="Piercing"
 style="border: 0px solid ; width: 95%; height: 95%;" alt=""
 src="http://img12.imageshack.us/img12/1567/piercingudk.jpg"></a><a
 target="_blank"><br>
      </a></td>
    </tr>
    <tr>
      <td></td>
      <td></td>
    </tr>
  </tbody>
</table>
<div id="content" style="margin-left: 0px;">
<!-- ========= Javascript gallery ========== -->
<table name="ClicPicOnline" border="0" cellpadding="8"
 cellspacing="0" height="width" width="25%">
  <tbody>
    <tr>
      <td>
      <table
 style="text-align: left; margin-left: auto; margin-right: auto;"
 oncontextmenu="return false" ondrag="return false"
 onmousedown="return false" border="0" cellpadding="0"
 cellspacing="4">
        <tbody>
          <tr style="" valign="middle">
            <td
 style="border: 5px solid rgb(178, 178, 178); vertical-align: middle; text-align: center;"
 rowspan="1" colspan="5" clicpic="v2web"><img
 style="border: 0px solid ; width: 100%; height: 100%;"
 src="http://img252.imageshack.us/img252/9788/tigoldrasta01.jpg"
 name="clicpicLg163" height="100%" width="100%">
            </td>
          </tr>
          <tr>
            <td style="text-align: center;" target="_blank"
 onmouseover="bigPic=document.clicpicLg163; bigPic.src='http://img252.imageshack.us/img252/9788/tigoldrasta01.jpg';">
            <img
 src="http://img252.imageshack.us/img252/9788/tigoldrasta01.jpg"
 alt="" style="border: 3px solid ; width: 72px; height: 72px;"></td>
            <td style="text-align: center;"><a
 target="_blank"
 onmouseover="bigPic=document.clicpicLg163; bigPic.src='http://img252.imageshack.us/img252/2340/tigoldrasta02.jpg';">
            <img
 src="http://img252.imageshack.us/img252/2340/tigoldrasta02.jpg"
 style="border: 3px solid ; width: 72px; height: 72px;" alt=""></a></td>
            <td style="text-align: center;"><a
 target="_blank"
 onmouseover="bigPic=document.clicpicLg163; bigPic.src='http://img339.imageshack.us/img339/1188/tigoldrasta03.jpg';">
            <img alt=""
 style="border: 3px solid ; width: 72px; height: 72px;"
 src="http://img339.imageshack.us/img339/1188/tigoldrasta03.jpg"></a></td>
            <td style="text-align: center;"><a
 target="_blank"
 onmouseover="bigPic=document.clicpicLg163; bigPic.src='http://img168.imageshack.us/img168/4940/skullcandytigoldrasta04.jpg';">
            <img alt=""
 style="border: 3px solid ; width: 72px; height: 72px;"
 src="http://img168.imageshack.us/img168/4940/skullcandytigoldrasta04.jpg"></a></td>
            <td style="text-align: center;"><a
 target="_blank"
 onmouseover="bigPic=document.clicpicLg163; bigPic.src='';"> <br>
            </a></td>
          </tr>
        </tbody>
      </table>
      </td>
    </tr>
  </tbody>
</table>
<div style="text-align: center;"><span
 style="color: rgb(51, 51, 51);">Passez sur l'image
pour l'afficher en grand</span><br>
</div>
<br>
<br>
<table
 style="border: 3px solid rgb(178, 178, 178); text-align: left; font-family: Verdana; width: 50%; height: 87px;"
 border="1" cellpadding="2" cellspacing="2">
  <tbody>
    <tr>
      <td>
      <p
 style="margin: 0cm 0cm 0pt; text-align: center; line-height: normal;"
 class="MsoNormal" align="center"><b>Tous nos
produits SKULLCANDY sont certifi&eacute;s authentiques et
achet&eacute;s avec factures aupr&egrave;s de la marque.<o:p></o:p></b></p>
      <p
 style="margin: 0cm 0cm 0pt; text-align: center; line-height: normal;"
 class="MsoNormal" align="center"><b>Chez nous,
pas de copie ni de provenance douteuse (Hong-Kong et
autres...)&nbsp;!!</b></p>
      </td>
    </tr>
  </tbody>
</table>
<br>
<br>
<br>
<div style="display: none;"></div>
<!-- =========End Javascript gallery ========== -->
<table
 style="border: 3px solid rgb(178, 178, 178); font-family: IMG Love; color: rgb(255, 153, 0); width: 50%; height: 50px; text-align: left; margin-left: auto; margin-right: auto;"
 cellpadding="2" cellspacing="0">
  <tbody>
    <tr>
      <td
 style="text-align: center; background-color: rgb(51, 51, 51);"><big><big><big><span
 style="font-weight: bold; font-family: Verdana;">Description</span></big></big></big></td>
    </tr>
  </tbody>
</table>
<table
 style="border: 3px solid rgb(178, 178, 178); width: 50%; height: 250px; text-align: left; margin-left: auto; margin-right: auto;">
  <tbody>
    <tr align="center">
      <td style="text-align: center;"><img alt=""
 src="http://img171.imageshack.us/img171/9500/skullcandylogo01.jpg"></td>
    </tr>
    <tr>
      <td rowspan="1"
 style="height: 60%; width: 100%; text-align: center; background-color: rgb(178, 178, 178);"><b
 style=""><span
 style="font-family: 'Verdana','sans-serif';"><small>Skullcandy
est la marque sp&eacute;cialis&eacute;e dans les accessoires
audio &agrave; porter sur les pistes dam&eacute;es ou dans la
rue. <br>
Des riders prestigieux comme Mark Franck Montoya ou encore Terje
Haakonsen font partie de la Team Skullcandy.<br>
      <br>
      </small></span></b><small><span
 style="font-family: 'Verdana','sans-serif'; font-size: 11pt;">
      <p
 style="margin: 0cm 0cm 0pt; text-align: center; line-height: normal;"
 class="MsoNormal" align="center"><span
 style="font-family: 'Verdana','sans-serif'; color: black;"><font
 size="3"><small>Le
Ti est mont&eacute; avec des hauts parleurs de pr&eacute;cision
de 40mm en titane qui
produisent des basses claires, vives et monstrueuses. La forme
sup&eacute;rieure du Ti combin&eacute;e &agrave; un son de
qualit&eacute; le propulse &agrave; l'avant
sc&egrave;ne de la r&eacute;volution audio.<o:p></o:p></small></font></span></p>
      <p
 style="margin: 0cm 0cm 0pt; text-align: center; line-height: normal;"
 class="MsoNormal" align="center"><span
 style="font-family: 'Verdana','sans-serif'; color: black;"><font
 size="3"><small>Les &eacute;couteurs sont
orientables &agrave; 90&deg; pour une utilisation type DJ.<o:p></o:p></small></font></span></p>
      <p
 style="margin: 0cm 0cm 0pt; text-align: center; line-height: normal;"
 class="MsoNormal" align="center"><span
 style="font-family: 'Verdana','sans-serif'; color: black;"><font
 size="3"><small>Le bandeau est en cuir et les
oreillettes en cuir doux.</small></font></span></p>
      </span></small><b style=""><span
 style="font-family: 'Verdana','sans-serif';"></span></b></td>
    </tr>
  </tbody>
</table>
<br>
<br>
<br>
<br>
<table
 style="border: 3px solid rgb(178, 178, 178); font-family: IMG Love; color: rgb(255, 153, 0); width: 50%; height: 50px; text-align: left; margin-left: auto; margin-right: auto;"
 cellpadding="2" cellspacing="0">
  <tbody>
    <tr>
      <td
 style="text-align: center; background-color: rgb(51, 51, 51);"><big><big><big><span
 style="font-weight: bold; font-family: Verdana;">Caract&eacute;ristiques
techniques</span></big></big></big></td>
    </tr>
  </tbody>
</table>
<table
 style="border: 3px solid rgb(178, 178, 178); width: 50%; height: 270px; text-align: left; margin-left: auto; margin-right: auto;">
  <tbody>
    <tr style="font-family: Verdana;">
      <td
 style="background: rgb(178, 178, 178) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial;">
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Diam&egrave;tre:</font></strong>
40 mm Titane</font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Type
d'aimant:</font></strong> NdFeB</font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Plage
de fr&eacute;quence:</font></strong> 100 -18000 Hz </font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Imp&eacute;dance:</font></strong>
32/50 Ohms</font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Puissance
d'entr&eacute;e maximum:</font></strong> 400 mW </font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Type
de cordon:</font></strong> OFC</font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Longueur
du cordon:</font></strong> 1.2m</font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Type
de fiche:</font></strong> connecteur jack 3.5mm
plaqu&eacute; Or </font></li>
      <li
 style="border-bottom: 1px solid rgb(255, 255, 255); margin-left: 20px; margin-bottom: 3px;"><font
 size="2"><strong><font color="#8f0100">Compatibilit&eacute;:</font></strong>
tous lecteurs MP3, iPod, iPhone.... </font></li>
      </td>
    </tr>
  </tbody>
</table>
<br>
<br>
<br>
<br>
<table
 style="border: 3px solid rgb(178, 178, 178); font-family: IMG Love; color: rgb(255, 153, 0); width: 50%; height: 50px; text-align: left; margin-left: auto; margin-right: auto;"
 cellpadding="2" cellspacing="0">
  <tbody>
    <tr>
      <td
 style="text-align: center; background-color: rgb(51, 51, 51);"><big><big><big><span
 style="font-weight: bold; font-family: Verdana;">Accessoires
fournis</span></big></big></big></td>
    </tr>
  </tbody>
</table>
<big> </big><big> </big><big> </big><big>
</big><big> </big>
<table
 style="border: 3px solid rgb(178, 178, 178); color: rgb(51, 51, 51); width: 50%; height: 200px; text-align: left; margin-left: auto; margin-right: auto;">
  <tbody>
    <tr style="font-family: Verdana;">
      <td
 style="background: rgb(178, 178, 178) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial; text-align: center;">Etui
de Transport<br>
      <br>
Jeu d'oreillettes de rechange<br>
      <br>
Adaptateur jack 6.3mm<br>
      <br>
R&eacute;glage du volume sur le cordon</td>
    </tr>
  </tbody>
</table>
<br>
<br>
</div>
</div>
</div>
</body>
</html>
Si quelqu'un peut m'aider à afficher correctement ce code avec ie8 (et firefox), je lui en serais très reconnaissant.
Merci d'avance.
Cordialement.
Arno