Which part of my autofilter code doesn't work in 2003?

Hi,

I have a large amount of code which error's when running in Excel 2003. (it does not sort, whereas in 2007 it does).

As i don't have Excel 2003 can someone tell me which part of my code does not run in Exccel 2003 please:

Range("E5").Activate
    ActiveWorkbook.Worksheets("BranchList").Sort.SortFields.Clear
    ActiveWorkbook.Worksheets("BranchList").Sort.SortFields.Add Key:=Range("E5"), SortOn:=xlSortOnValues, Order:=xlAscending, DataOption:=xlSortNormal
    With ActiveWorkbook.Worksheets("BranchList").Sort
        .SetRange Range("B6:AE65513")
        .Header = xlNo
        .MatchCase = False
        .Orientation = xlTopToBottom
        .SortMethod = xlPinYin
        .Apply
    End With

Thanks