The card you have is a nvidia.
Have you downloaded the driver files from the www.nvidia.com site, try installing these and configuring your XF86Config-4 file and that should work.
There are instructions on this site (look fir installing a nvidia card in the OMP section)as how to go about this, there are also instructions at the nvidia site. It's fairly simple and gives you a taste of getting something working on your box!
Hopefully we'll have you up and running soon.. Welcome to GLO.