GnoRPM is a graphical front end to the RPM package management system. I wrote it and maintained it up til the end of 1999 (around the 0.9 release). A screenshot of an earlier version can be found here. You can find GnoRPM here:
Note that GnoRPM is targetted at the Gnome 1.x libraries, and doesn't support the latest versions of rpm yet. You might want to look at Nautilus RPM instead, which I am developping on and off.