Problem upgrading gd on php 4.2.2
 

I am having a problem upgrading GD to version 2.X on Redhat Linux 9.0. When I do an rpm-u. I get dependency issues. I need to know how to determine which version of GD I am currently running and if it is a better idea just to update php to one that has GD 2.X bundled with it or continue trying to update GD. I am currently running php 4.2.2 and I think that I am running the GD version that comes with 4.2.2.