In this video: Photoshop and 3dsMax (on windows xp).
We already know that MC used 3dsMax 2008 to create all the models, but unfortunately they exported the moddel in an unknown format (should be a strange kind of xml)...
That exporter is the key to cc creation.
you may wan't to look into using a program called GIMP I have used it in oblivian and neverwiternights 2