Maria is right, however RH 7.3 doesnt run on the latest H/W this is assumming you actually find drivers for your H/W. If you dont want to take risks you have two choices:
1) RUN RH7.3 on older H/W
2) RUN RH7.3 on a Virtual Machine using later H/W.
Option 2 IMO is perfect as using say VMWARE 4 for example will make your H/W compatile through an abtraction/emulation layer or whatever they call it. Dont mistake VMWARE to be slow ive tried Mandrake 9.2 and its pretty quick(faster than virtual PC, its not an emulator), just make sure you have alot of RAM and a fast CPU.
Iam about to get a laptop HP ZD7000 and its imposible to run RH7.3 so I can either use the virtual machine or an upto date LINUX such as mandrake 9.2. I shall post my results here if anyone is interested.
KLEO