Those are programs that can give information about your hardware. msinfo32 should be installed by default on Windows XP, just click Start -> Run and type "msinfo32" in the dialog box. In MSINFO32's window, click Components/Display (or whatever it is in your language version of Windows) on the left side of the window and it should show info about your video card. Also check at NVIDIA's web site http://www.nvidia.com/ the list of supported devices for the latest release of the ForceWare drivers (current release 91.33).
Did you try this?
Geforce 7 go cards uses seperate drivers that are not bundled with all the others. Also make sure to download the international drivers if you are not using an english OS.