Hiya,
I don\'t think the updater is repeating anything, unless you actually see the same file names over and over. Leave it running - one hour, two, three, however long it takes (aye, it can take that long). Don\'t interrupt, let it finish, and then run the game :)
You can also try running the updater in recover mode - if you\'re using Windows, find it in Start -> Programs -> PlaneShift Crystal Blue -> PlaneShift Updater (Recover), or with a similar name.