10.6: IP printer install not recognizing drivers

I have a MacBookPro running 10.6. I'm trying to install an IP Xerox printer, which I know is supported in 10.6.
I install the drivers and it tells me it was successful, but after I've added the printer, it doesn't give me a drop-down list of any printers to choose my model from.

Am I doing this correctly? Any suggestions? I managed to install the same printer successfully on 10.5...

I figured it out--I needed an updated printer driver. There was one I missed.