Check also http://talk.maemo.org/showthread.php?t=83411

and (perhaps more useful)
http://talk.maemo.org/showthread.php?t=82641

Additional information (from you) is very welcome.

PS: CSSU does not replace all Nokia stuff. It's just a bunch of updated/replacement packages [rand on] which happens to come all together in one pack, i.e. all or nothing.. unfortunately [rant off. if you want to discuss about this please on another thread].