Alright guys here's a link about KDE 2.2.1 rpm's built for RedHat 7.x. I can't try these out right now, I'm running Roswell on my desktop and I don't have KDE installed at all on my firewall/router box. I upgraded my Roswell box to KDE 2.2.1 using the rpm's for it. They fixed a few bugs I had with KDE 2.2. If you feel daring give them a try.

http://dot.kde.org/1001216773/