One common way is to change your yum repositories. This one works with CENTOS:
http://www.atomicorp.com/channels/atomic/
It's simple, but you would want to do a bit of research before attempting the change. I've seen some posts from others who had a great deal of difficulty doing this.
However, one has to weigh the benefits. I'm still running vb4 only as a test site :erm: