I'm not sure which TC version stopped overwriting the hildon-desktop (I'm on 0.9-72). Do you have more than 4 home screens available (you'll have a scrollbar show up in the Manage Views panel if you do)? If not, you're running the TC hildon-desktop, and not the CSSU one.
You have too old version of TC which ignores CSSU. That's why the resize-function still works :P Don't upgrade it if you wish to keep it that way.