Probléme de compatibilté macro vba excel 2007 vers 2002

Voici le code que j'ai dans une feuille sous excel 2007
Code:
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Private Sub Worksheet_Change(ByVal Target As Range)
 
Dim r As Range
Dim c As Range
 
    On Error GoTo errSelection
 
        If Target.Validation.Type <> 0 Then
            Set r = Range(Mid(Target.Validation.Formula1, 2))
            For Each c In r.Cells
                If c = Target Then
                    Range("D" & c.Row).Copy Range("D" & Target.Row)
                    Range("E" & c.Row).Copy Range("E" & Target.Row)
                    Range("G" & c.Row).Copy Range("G" & Target.Row)
                    Range("H" & c.Row).Copy Range("H" & Target.Row)
                    Range("J" & c.Row).Copy Range("J" & Target.Row)
                    Exit For
                End If
            Next c
        End If
 
        GoTo ext
 
errSelection:
        Select Case Err.Number
            Case 1004
                Err.Clear
            Case Else
                MsgBox "erreur non prévue" & vbCrLf & "Erreur n°" & Err.Number & vbCrLf & _
                        Err.Description, vbCritical + vbOKOnly, "erreur"
                Err.Clear
        End Select
 
ext:
 
End Sub
 
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
 
Dim nligne As Integer
Dim Feuille As Worksheet
Dim CelluleRéférence As Range, CelluleIndex As Range, Cellulepointeur As Range
 
    Set Feuille = Worksheets("FeuilleDeTravail")
    Set CelluleRéférence = Feuille.Range("B4")
    Set CelluleIndex = Feuille.Range("B5")
    Set Cellulepointeur = Feuille.Range("B6")
 
        nligne = CelluleRéférence.Value + CelluleIndex
 
'CREATION LIGNE
 
        If Target.Row = nligne And Target.Column <= 4 Then
 
        On Error GoTo errSelection
 
            Bordure Range("A" & nligne + 1 & ":J" & nligne + 1)
            CelluleIndex = CelluleIndex + 1
                caseselect nligne + 1, 12
                Cellulepointeur = Cellulepointeur + 1
            lienext nligne
            detailclient nligne
            Target.Select
        End If
 
        GoTo exitfin
 
errSelection:
        Select Case Err.Number
            Case 1004
                Err.Clear
            Case Else
                MsgBox "erreur non prévue" & vbCrLf & "Erreur n°" & Err.Number & vbCrLf & _
                Err.Description, vbCritical + vbOKOnly, "erreur"
                Err.Clear
            End Select
 
exitfin:
 
End Sub
 
Sub Bordure(plage As Range)
 
    plage.Select
    With Selection.Borders(xlEdgeLeft)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeTop)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeBottom)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeRight)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
    With Selection.Borders(xlInsideVertical)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
    With Selection.Borders(xlInsideHorizontal)
        .LineStyle = xlContinuous
        .ColorIndex = 0
        .TintAndShade = 0
        .Weight = xlThin
    End With
 
    Range("F" & plage.Row).Formula = "=C" & plage.Row & "*E" & plage.Row
    Range("I" & plage.Row).Formula = "=C" & plage.Row & "*H" & plage.Row
 
End Sub
 
Sub caseselect(nl As Integer, nldebut As Integer)
 
Range("B" & nl).Validation.Add Type:=xlValidateList, Formula1:="= B" & nldebut & ":B" & nl
Range("G" & nl).Validation.Add Type:=xlValidateList, Formula1:="='Indice Taux'!B5:B14"
Range("J" & nl).Validation.Add Type:=xlValidateList, Formula1:="='Indice Taux'!F5:F14"
 
End Sub
 
Sub lienext(i As Integer)
 
Dim c As Worksheet
 
    Set c = Worksheets("Feuilledetravail")
 
        c.Range("A" & i).FormulaR1C1 = "=Devis!R" & i & "C1"
        c.Range("B" & i).FormulaR1C1 = "=Devis!R" & i & "C2"
        c.Range("C" & i).FormulaR1C1 = "=Devis!R" & i & "C3"
        c.Range("D" & i).FormulaR1C1 = "=Devis!R" & i & "C4"
        c.Range("E" & i).FormulaR1C1 = "=Devis!R" & i & "C5"
        c.Range("F" & i).FormulaR1C1 = "=Devis!R" & i & "C6"
        c.Range("G" & i).FormulaR1C1 = "=Devis!R" & i & "C7"
        c.Range("H" & i).FormulaR1C1 = "=Devis!R" & i & "C8"
        c.Range("I" & i).FormulaR1C1 = "=Devis!R" & i & "C9"
        c.Range("J" & i).FormulaR1C1 = "=Devis!R" & i & "C10"
 
        c.Range("K" & i).FormulaR1C1 = "=IF(RC[-10]<>0,1,0)"
 
        c.Range("L" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B5,F" & i & "*(1+ 'Indice Taux'!D5),)"
        c.Range("M" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B6,F" & i & "*(1+ 'Indice Taux'!D6),)"
        c.Range("N" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B7,F" & i & "*(1+ 'Indice Taux'!D7),)"
        c.Range("O" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B8,F" & i & "*(1+ 'Indice Taux'!D8),)"
        c.Range("P" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B9,F" & i & "*(1+ 'Indice Taux'!D9),)"
        c.Range("Q" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B10,F" & i & "*(1+ 'Indice Taux'!D10),)"
        c.Range("R" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B11,F" & i & "*(1+ 'Indice Taux'!D11),)"
        c.Range("S" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B12,F" & i & "*(1+ 'Indice Taux'!D12),)"
        c.Range("T" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B13,F" & i & "*(1+ 'Indice Taux'!D13),)"
        c.Range("U" & i).Formula = _
            "=IF(G" & i & "='Indice Taux'! B14,F" & i & "*(1+ 'Indice Taux'!D14),)"
 
        c.Range("V" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F5,I" & i & "*('Indice Taux'!H5),)"
        c.Range("W" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F6,I" & i & "*('Indice Taux'!H6),)"
        c.Range("X" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F7,I" & i & "*('Indice Taux'!H7),)"
        c.Range("Y" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F8,I" & i & "*('Indice Taux'!H8),)"
        c.Range("Z" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F9,I" & i & "*('Indice Taux'!H9),)"
        c.Range("AA" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F10,I" & i & "*('Indice Taux'!H10),)"
        c.Range("AB" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F11,I" & i & "*('Indice Taux'!H11),)"
        c.Range("AC" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F12,I" & i & "*('Indice Taux'!H12),)"
        c.Range("AD" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F13,I" & i & "*('Indice Taux'!H13),)"
        c.Range("AE" & i).Formula = _
            "=IF(J" & i & "='Indice Taux'! F14,I" & i & "*('Indice Taux'!H14),)"
        c.Range("AF" & i).Formula = _
            "=SUM(L" & i & ":AE" & i & ")"
 
End Sub
 
Sub detailclient(i As Integer)
 
Dim a As Worksheet, b As Worksheet
 
    Set a = Worksheets("Détail Client")
    Set b = Worksheets("FeuilleDetravail")
 
        a.Range("A" & i - 9).Formula = _
            "=if('FeuilleDetravail'! A" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! A" & i & ")"
        a.Range("B" & i - 9).Formula = _
            "=if('FeuilleDetravail'! B" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! B" & i & ")"
        a.Range("C" & i - 9).Formula = _
            "=if('FeuilleDetravail'! C" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! C" & i & ")"
        a.Range("D" & i - 9).Formula = _
            "=if('FeuilleDetravail'! D" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! D" & i & ")"
        a.Range("E" & i - 9).Formula = _
            "=F" & i - 9 & "/C" & i - 9 & ""
 
    If b.Range("B3") = 1 Then
        a.Range("F" & i - 9).Formula = _
            "=if('FeuilleDetravail'! AF" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! AF" & i & "* (1 + SommeMOBureau/SommeVenteBrute)*(1+coeffinal)*(1/(1+remise)))"
    Else
        a.Range("F" & i - 9).Formula = _
            "=if('FeuilleDetravail'! AF" & i & "=0," & Chr(34) & Chr(34) & ",'FeuilleDetravail'! AF" & i & "*(1+coeffinal)*(1/(1+remise)))"
    End If
 
    If i > 13 Then
        a.Range("G" & i - 10).Formula = _
            "=if('FeuilleDetravail'! K" & i & "=0," & Chr(34) & Chr(34) & ",SUM(F3:F" & i - 10 & ")- SUM(G3:G" & i - 11 & "))"
    End If
 
End Sub
Le probléme viens en partie de MID et de lapartie de création de cadre de ligne