[CentOS] MySql server on Centos 5

I have a question about Mysql.
I use mysql 5.0.68 on Centos 4 from Centos plus repository.

The old hardware steers me to Centos 5, however there is mysql 5.0.45. Some
program solutions which we are using on the old server (production for 500
users) do not work properly on new one (some querys producing reports).

Is there a source where I can find version for Centos 5 server equal to the
Mysql version which I run on the old server. I'd like to use some kind of
repository.

Looking forward for sugesstions.

Blaž