Yo Billy....
It is my understanding that they only list parties that are "sanctioned" and the only way to get your party sanctioned is to have a booth at the show. Now, to their defense, that is a rule that I have ran into doing tradeshows everywhere that I have ever done them (mainstream shows, as well).
I would guess that is the reason that it is not listed....but I would have thought they would have told you that in the reply.
--T
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