Share printer Vista Ultimate 64 computer with XP Pro 32 bit

> I have the following:
>
> Desktop
> ---------
> Compaq with AMD 64 Dual Core
> HP 1320 laserjet
>
> Laptop
> --------
> Compaq with P4
>
> Both computers 'see' each other just fine. HP 64 bit driver works fine on
> Vista machine.
>
> But when I share the printer and try to install 'additional' drivers for XP
> 32 bit drivers, Vista says that the 32 bit drivers are not correct for this
> machine. Which is correct, but I only want the 32 bit drivers there for the
> XP machines which will use the shared printer.
>
> What am I missing here.
>
> Thanks
>
> Al