I guess the guy had some problems with showing some features that were in maya 6 until six was released. Now I'm not sure whats going on, last I heard he was making it a maya 6 disk instead fully...
so there yea go. I would hope now that six has been released for a month now that his site will update very soon.
All in all heres the deal, no one has gotten it yet and all you can do is hope the guy is an honest guy and is acualy panning on getting it released now that maya 6 is in the marketplace.