I didn't see where ONE card wasn't supported. it was talking about eyefinity wasn't it ?
go to amd's driver site. type in drivers and select xp. you'll see they do make it. no reason it shouldn't work.
Allright, sorry my bad, i didn't notice it was only for the eyefinity.
I personally prefer windows XP, I'm not omitting 7 because i still have it on another partition. If a game comes out that is not compatible with XP, I'll just install it on my windows 7 partition.