PHP 4.1.1 upgrade on VPS account with Red Hat 7.1

I recently upgraded to a VPS account with RedHat 7.1. As an "upgrade" I got older version of PHP (4.1.1) and no support for it. I installed PHP 4.3.2 using default prefix not to overwrite the old version which was installed in a different location, but the Apache was still picking up the old version. Then I replaced all the old PHP files and directories with their new versions, so they would be picked up from their original location. Nothing. The phpinfo is still giving me 4.1.1 I realized that PHP was originally installed as an RPM package. Is there any way to switch from the RPM installation to the new one without completely removing it? Any help would be appreciated Vlad Goryachev