Roberto,
The best link at photo.net for cvs is
http://photo.net/bboard/q-and-a-fetch-msg.tcl?msg_id=000fBh.
At that url, there is a link to using CVS with ACS. I think that it is very informative, but it doesn't cover real c-vs. I think that it would be very helpful if someone could explain or point us in the right direction on reconciling two branches diverging from a common place.