Changement url rewriting pas de redirection et erreur 404 sur les anciennes url

Bonjour,

Mon hébergeur m'a forcé a migrer de phpbb2 à une version plus récente.

Ce que j'ai fait sans problème.
Cependant j'ai un énorme problème car sur le phpbb2 il y avait un rewriting différent de celui que j'ai installé sur le phpbb3 et aucunes redirection n'est faites entre les anciennes url. Ce qui génèrent des erreurs. Il n'y a pas de redirection entre les 2 versions de rewriting, en fait

Le htaccess du bb2 etait :

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
# RewriteRule ^viewforum([0-9]*)-([0-9]*)-([0-9]*).* /viewforum.php?f=$1&topicdays=$2&start=$3 
# RewriteRule ^forum([0-9]*).* /viewforum.php?f=$1 
# RewriteRule ^ptopic([0-9]*).* /viewtopic.php?t=$1&view=previous 
# RewriteRule ^ntopic([0-9]*).* /viewtopic.php?t=$1&view=next 
# RewriteRule ^stopic([0-9]*)-([0-9]*).* /viewtopic.php?t=$1&watch=topic&start=$2 
# RewriteRule ^utopic([0-9]*)-([0-9]*).* /viewtopic.php?t=$1&unwatch=topic&start=$2 
# RewriteRule ^ftopic([0-9]*)-([0-9]*)-([a-zA-Z]*)-([0-9]*).* /viewtopic.php?t=$1&postdays=$2&postorder=$3&start=$4 
# RewriteRule ^ftopic([0-9]*)-([0-9]*).* /viewtopic.php?t=$1&start=$2 
# RewriteRule ^ftopic([0-9]*).* /viewtopic.php?t=$1 
# RewriteRule ^ftopic([0-9]*).html /viewtopic.php?t=$1&start=$2&postdays=$3&postorder=$4&highlight=$5 
# 
# RewriteRule ^setopic_([0-9]*)-([a-zA-Z0-9]*).* /viewtopic.php?t=$1&highlight=$2 
# RewriteRule ^sutra-([0-9]*).* /viewtopic.php?p=$1 
# RewriteRule ^newtopic([0-9]*).* /viewtopic.php?t=$1&view=newest 
# 
# RewriteRule ^profil-([0-9]*).* /profile.php?mode=viewprofile&u=$1
#

Ce qui donnait cette forme d'url : h ttp://www.mondomaine.com/ftopicXXX-titre-du-sujet.html

Le htaccess qui fonctionne du phpbb3:

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
# Lines That should already be in your .htacess
<Files "config.php">
	Order Allow,Deny
	Deny from All
</Files>
<Files "common.php">
	Order Allow,Deny
	Deny from All
</Files>

# You may need to un-comment the following lines
# Options +FollowSymlinks
# To make sure that rewritten dir or file (/|.html) will not load dir.php in case it exist
# Options -MultiViews
# REMEBER YOU ONLY NEED TO STARD MOD REWRITE ONCE
RewriteEngine On
# Uncomment the statement below if you want to make use of
# HTTP authentication and it does not already work.
# This could be required if you are for example using PHP via Apache CGI.
# RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
# REWRITE BASE
RewriteBase /
# HERE IS A GOOD PLACE TO FORCE CANONICAL DOMAIN
# Define fully qualified ssl aware protocol
# RewriteCond %{SERVER_PORT}s ^(443(s)|[0-9]+s)$
# RewriteRule ^.*$ - [env=HttpFullProto:http%2://]
# RewriteCond %{HTTP_HOST} !^www\.mondomaine\.com$ [NC]
# RewriteRule ^(.*)$ %{ENV:HttpFullProto}www.mondomaine.com/$1 [QSA,L,R=301]

# DO NOT GO FURTHER IF THE REQUESTED FILE / DIR DOES EXISTS
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
#####################################################
# PHPBB SEO REWRITE RULES ALL MODES
#####################################################
# AUTHOR : dcz www.phpbb-seo.com
# STARTED : 01/2006
#################################
# FORUMS PAGES
###############
# FORUM INDEX REWRITERULE WOULD STAND HERE IF USED. "forum" REQUIRES TO BE SET AS FORUM INDEX
# RewriteRule ^forum\.html$ /index.php [QSA,L,NC]
# FORUM ALL MODES
RewriteRule ^(forum|[a-z0-9_-]*-f)([0-9]+)(-([0-9]+))?\.html$ /viewforum.php?f=$2&start=$4 [QSA,L,NC]
# TOPIC WITH VIRTUAL FOLDER ALL MODES
RewriteRule ^(forum|[a-z0-9_-]*-f)([0-9]+)/(topic|[a-z0-9_-]*-t)([0-9]+)(-([0-9]+))?\.html$ /viewtopic.php?f=$2&t=$4&start=$6 [QSA,L,NC]
# TOPIC WITHOUT FORUM ID & DELIM ALL MODES
RewriteRule ^([a-z0-9_-]*)/?(topic|[a-z0-9_-]*-t)([0-9]+)(-([0-9]+))?\.html$ /viewtopic.php?forum_uri=$1&t=$3&start=$5 [QSA,L,NC]
# PHPBB FILES ALL MODES
RewriteRule ^ressources/[a-z0-9_-]+/(thumb/)?([0-9]+)$ /download/file.php?id=$2&t=$1 [QSA,L,NC]
# PROFILES THROUGH USERNAME
RewriteRule ^membre/([^/]+)/?$ /memberlist.php?mode=viewprofile&un=$1 [QSA,L,NC]
# USER MESSAGES THROUGH USERNAME
RewriteRule ^membre/([^/]+)/(topics|posts)/?(page([0-9]+)\.html)?$ /search.php?author=$1&sr=$2&start=$4 [QSA,L,NC]
# GROUPS ALL MODES
RewriteRule ^(groupe|[a-z0-9_-]*-g)([0-9]+)(-([0-9]+))?\.html$ /memberlist.php?mode=group&g=$2&start=$4 [QSA,L,NC]
# POST
RewriteRule ^post([0-9]+)\.html$ /viewtopic.php?p=$1 [QSA,L,NC]
# ACTIVE TOPICS
RewriteRule ^sujets-actifs(-([0-9]+))?\.html$ /search.php?search_id=active_topics&start=$2&sr=topics [QSA,L,NC]
# UNANSWERED TOPICS
RewriteRule ^sans-reponses(-([0-9]+))?\.html$ /search.php?search_id=unanswered&start=$2&sr=topics [QSA,L,NC]
# NEW POSTS
RewriteRule ^nouveaux-messages(-([0-9]+))?\.html$ /search.php?search_id=newposts&start=$2&sr=topics [QSA,L,NC]
# UNREAD POSTS
RewriteRule ^non-lu(-([0-9]+))?\.html$ /search.php?search_id=unreadposts&start=$2 [QSA,L,NC]
# THE TEAM
RewriteRule ^equipe\.html$ /memberlist.php?mode=leaders [QSA,L,NC]
# HERE IS A GOOD PLACE TO ADD OTHER PHPBB RELATED REWRITERULES

# FORUM WITHOUT ID & DELIM ALL MODES
# THESE FOUR LINES MUST BE LOCATED AT THE END OF YOUR HTACCESS TO WORK PROPERLY
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([a-z0-9_-]+)(-([0-9]+))\.html$ /viewforum.php?forum_uri=$1&start=$3 [QSA,L,NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([a-z0-9_-]+)\.html$ /viewforum.php?forum_uri=$1 [QSA,L,NC]
# FIX RELATIVE PATHS : FILES
RewriteRule ^.+/(style\.php|ucp\.php|mcp\.php|faq\.php|download/file.php)$ /$1 [QSA,L,NC,R=301]
# FIX RELATIVE PATHS : IMAGES
RewriteRule ^.+/(styles/.*|images/.*)/$ /$1 [QSA,L,NC,R=301]
# END PHPBB PAGES
#####################################################

Ce qui génèrent cette forme d'url : h ttp://www.mondomaine.com/titre-du-sujet-tXXX.html

Mon problème est qu'il n'y a aucune redirection entre les anciennes url (rewritées) et les nouvelles, et cela génère des erreurs 404 sur les anciens liens (interne, moteurs de recherches)

Pouvez vous m'aider s'il vous plait ? Ca fait une semaine que je m'arrache les cheveux la dessus.