I have got a 2,66 Mac Pro with windows XP home installed using boot camp. However, xp home won’t support both processors in the Mac Pro. Therefore I either want to install xp pro or Vista Ultimate/business/enterprise. I actually own a copy of xp pro, however, I wasn’t able to do a upgrade installation due to the fact that my xp home and pro verions are in two different languages. If I buy a upgrade version of vista; will it work with boot camp?