Sorry to possibly thump on a dead horse, but did the "Official Seal" ever get worked out Fan Content in-game linking books?
If not, I'd like to put this one forward from a 2007 Moula Forum post:
http://mystonline.com/forums/viewtopic.php?t=11864
P.S. If we have, please ignore this post.
(Nev's Note: Was looking up stuff for the GoMe history project...Glad we got the confusion settled for a standardized shorthand of GoMe & GoMa around mid-2008.)