Rolling back to RHEL 3

I've decided that RHEL 4 isn't ready for production for me yet. I can't get my NetBackup client to load on it, and VMWare ESX server has some problems keeping the clock synced, which is causing all my e-mail from that system to lag waaaay behind. So, I'm setting up a RHEL 3 system on the same VMWare server, which should hopefully work just fine. I'll move back to Red Hat Enterprise Linux 4 after VMWare and Veritas have their newer versions out, as I really liked some of the new features and the updated packages (SpamAssassin 3 and Dovecot IMAP).