installation of postgres 8.3 on CentOs 5.1

Hello,

I am attempting to install postgres 8.3 onto a centos 5.1 (Redhat 5) server and am having the following difficulty.

Basically, the currently installed postgresql-libs package cannot be removed since there is a dependency on it from the apr-util package

Therefore, i am unable to remove the older 8.1 package in order to install the 8.3 RPMs

Any ideas from people? Is the only way to force it?

Cheerio,

Nic Hemley