thanks for the responses, but that doesn't seem to work.
rpm -ql | less says that it isn't installed, so I tried it with the full name of the downloaded package. No luck. The only logical explanation would be that it didn't install.
Maybe I should be logged in as root rather than just a normal user?
Ordinarily, if I install a package from rpm, should it create a shortcut or something? I'm using Red Hat 9, so I just have to double-click on the dowloaded package for it to install.
Is there a different way I should do this in the fututre, for example when I need to install an OpenGL driver thing?