Problem

I have gcc-3.4.3-22.1 installed on a RHEL4(AS) server (HP DL580). I need to have gcc-3.4.3-9.EL4 installed as well, however, when I try to install it, even to another directory RPM spits out that A) I already have a newer version installed and B) if I do force this installation, I will break a number of dependencies for the 3-22 version.

My question is, how can I get both installed without either of the breaking each other?

Thanks