Animation Importing

Hello,
I am a game developer who is looking at downloading/paying for professional models from 3drt.com. Thankfully they include a free sample modelto try it out and test with your engine. When I import it into blender it looks fine, but none of the animations work! Either that or I don’t see them? It include the following formats:

.max
.mb
.3ds
.x
.fbx

Any Ideas for getting this into blender?