Add printer remotely for XP users doesn't install driver

All,

I'm using these instructions to add a networked printer remotely for
Xp users on our Domain:

http://members.shaw.ca/bsanders/NetPrinterAllUsers.htm

These steps use this script:
rundll32 printui.dll,PrintUIEntry /ga /c\\%1
/n\\servername\printername
start /Wait sc \\%1 stop spooler
start /wait sc \\%1 start spooler

this does install the printer for the user, however, it doesn't
install the printer driver. In the user's Printers folder, below the
icon for the printer, it says "Unable to Connect". If you then
double-click the printer, it throws an error, "Operation could not be
completed". Even a reboot doesn't help.

I have found that when we build a new PC for a user, if we pre-isntall
the printer on the PC, then any user can later add that printer using
the "Add Printer Wizard". I was hoping I could bypass that altogether
and just install the printer and driver all in one fell swoop.

Anyway, if you all know of a brilliant way to globally install a
printer with the driver remotely, let me know.

Thanks,

-Rob