I don't know whether the answer is there or not, but you could try going to the
Meacreator Website (GCB is a specialized build of Metacreator that was licensed by SJ Games for 3rd edition), and looking on their Discussion Board, or possibly the FAQ. Failing both of those, I believe there is a Support contact thingy at the bottom, and someone with Alterego Software may be able to help you out.