Followed Model Port tutorial, model still get deformed in game

[TokoyamiTheDark]

So, yeah... The title says it all. After all the hours spent to T-Stancing my character thanks to this guide (http://forums.kc-mm.com/index.php?topic=36053.0), I finally rigged the bones and felt joy, beause I thought I went on my 1st Model Import. But it was too early to jump for joy, as it STILL get messed up once put in game! Now that I've followed EVERY step of the guide, and still not working, I dunno what to do anymore... Can someone help?