Hi, I have Windows XP X64 Edition. Since I upgrated previous version of WB5 to newer one, only native 64 bit programs get their windows skinned. 32 bit programs show only as windows classic style. See link, it shows explorer.exe (64bit) and excel.exe (32bit), so you get a picture what I mean...
I used Stardock Central to upgrade. It now shows my version of WB5 as 5.00[b].006. First version of WB5 skinned also 32 bit programs, so this is a serious drawback.