CP is pretty bad IMO....but its a strong opinion. ?Having to be a member to do most of the forum is just bad customer service, especially when that is the main avenue to get customer service from them, which is pretty bad anyway.
Most of the CP items are from Rendo..or should I say they're just a front for the same stuff, Also RDNA, Vanishing Point and quite a few others.

Here's the blurp from the forums front page if you're NOT a Passport member::

forums available only to Passport members:
 
Passport Members Forum
CP Support
Poser
Shade
Suggestion Box 

So to even get Poser support, you have to be a passport member. CP belongs to eFrontiers if I'm not mistaken
 

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