I'm having trouble uninstalling linux on my centOS 4 that has plesk.

I'm actually trying to upgrade my Mysql 4.1 version to Mysql 5.0 using the following command:

yum update mysql

I get an error list of conflicted files however. When I try to remove mysql 4.1 and perform a clean install but when I use

yum remove mysql*

It deletes all of its dependencies and appearantly some of these are files needed by plesk, which causes my plesk to stop working. A did a full restore and everything is okay now, but how can I remove mysql without ruining plesk?

I have also tried:

rpm -qa | grep mysql 

to get a list of all files and remove them one by one, but there's a duplicate in that list, so I can't delete those (because it says it doesn't know which one to take).

Any help would be greatly appreciated!