noone corrects GC because they dont understannd the material room IMO. its not so hard to have GC.last year i was lost in the material room. now i am not anymore. and now i can create shaders.

www.renderosity.com/mod/forumpro/showthread.php
www.renderosity.com/mod/forumpro/showthread.php

you have poser 7 so you need to have GC in the shaders. if you use bagginsbills skin shader then the GC is already inside. if you want to create your own shader you need this
www.renderosity.com/mod/forumpro/showthread.php

connect the texture and voila.