Hm, I believe it is KDE 3? Not sure...I have all the latest updates in the repos though (and yes I did reload).
By control center I mean the one for my computer. From their I can (usually) adjust my hardware and such. I have been getting some random freezing as well which I think is related. But it always freezes when I open the control center so I don't think its memory related etc.
Addendum: I checked the KDE version and it was 3.5.10.