I do not see that upgrade path at this link:
http://www.microsoft.com/windows/pro.../overview.mspx
It looks like you can upgrade your basic to ultimate, but not to business.
64 bit is for people who know why they need it.
Since you are asking, it follows that you don't need it.
Vista business and ultimate ought to be compatible with Server 2003.
I speak without sure knowledge, however, so those who know should say.
"Jeannine" <> wrote in message news:7B877B18-0333-4696-A726-...
>I purchased 2 dell computers:
>
> AMD AthlonT 64 3500+; Memory 2GB Dual Channel DDR2 SDRAM at 533MHz- 2DIMMs;
> Hard Drive 80GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache
>
> It came with vista home
>
> 1. will vista business upgrade vista home?
> 2. do I want to order 32 bit or 64 bit
> 3. Is vista business compatible with Server 2003
>
> Thank you to anyone who can answer these questions!!
>
>