If you'd searched the forum you'd have seen that this has been covered numerous times but here goes.
Run this:
Code:
sudo installation_sources -a ftp://ftp.suse.com/pub/suse/i386/supplementary/KDE/update_for_10.0/yast-source
Now go to the YaST -> Software Management panel, Search for KDE and qt* packages and select those for upgrade. Click next, wait a couple of hours for them to download and then click finish when completed, then restart the X windowing system (rcxdm restart)