apps missing after update to 3.1

Hi guys! What could be the reason for applications, that are supposed to be there (kaddressbook) since their libs are installed (kdelibs3), not to be there? kdelibs rpm's fine without errors and all, but the addressbook is not there. Not only that, my address files are gone, too... (thanks for backups! but there is still work involved to bring potential new files up to date...) What am I obviously missing?? Thanks HG