HTOTM: FUSION
While there is no way to directly import it, here are the sizes and positions of all body parts:
https://dl.dropboxusercontent.com/u/...ayer-sizes.txt

And here is an example model I made where I set them up in blender:
https://dl.dropboxusercontent.com/u/...ash/tori.blend

I believe there are more complicated rigs in the Art subforum, for example schnitzelkiller's rig.
<Faint> the rules have been stated quite clearly 3 times now from high staff