Windows Server 2003 R2 32bit Print Server supporting Vista 64 bit

I apologize if this question has been asked before but what is the trick to
support Vista 64 bit print drivers and queues from a "legacy" Windows Server
2003 R2 32bit print server?

Is there a “how-to� document from Microsoft?

I need to be able to allow 64bit Vista users to just double click a printer
on 2003 (32bit) and have the queue and driver seamless create/download just
like we do with XP 32bit.

Sound easy but I cannot get the drivers to upload to the 2003 print server
for Vista x64.

Any ideas?