Using the latest version of Contribute CS3 (v4.1) on PC and Mac platforms - generates lots of random errors with users connections. Roles continually returned invalid when users try to access the site. Lots of problems documented on Adobe's forums, but very little help delivered directly from Adobe - no authorized reps lurking the forums to provide help, etc... VERY bad support experiences. I would NOT recommend this product, as the problems I've experienced have been randomly occurring, difficult to replicate and the solutions are never the same twice.

The fact that Adobe has almost no presence on the forums .leaves me to believe that they don't see a long life for this product, themselves.