Have you tried using the scl repos from RedHat/CentOS? I use it at work yo enable different versions of Python at a system level if I am unable to muck with it because of yum.
I believe they are available for CentOS 5.x?
I believe they are available for CentOS 5.x?
You can install a newer version, but our CentOS 5 machines are meant for compatibility tests, so modifying their setup is unacceptable.