Server 2003R2 & Vista 64 Printers

I have looked everywhere for a solution to this problem, but can not seem to
find one.

I have a 200R2 Server and install all my network printers as local printers
on this machine (Via IP). I then add the drivers to allow others to connect
as network printers from this machine. The problem is I can't get my 64 Bit
Drivers for Vista to work when I add the drivers. When I try to add them to
the 64 Bit location, i get an error saying something about it being the wrong
arcitecture.

Any Ideas?