Cool. You win this:Got it to work.
Just a very simple texture hack, to see how it would turn out -- Phantom Hourglass β. Got down nicely.
http://www.megaupload.com/?d=ZAHAPT8G
Incidentally, you can copy and paste the model hex to any Mewtwo colour.dat you want. Oh, and uh... it's not perfect. Like I mentioned a while ago, he has a semi-noticable hole in his head (that's not noticable in a match without pausing), and a silver 'medallion' on his shoulders also caused by his neck-lessness.