hash patches from other sources

I like Animation Master's animation controls, but I don't like the modeller(it's not that it is bad, I am just making an arbitrary judgement.) I have had some success using Amorphium's subdivision surface modeller(subdivide the control verticies until they look like the generated mesh, exporting the control verticies to a wavefront model, importing the wavefront model into wings 3d and then exporting the control mesh to hash .mdl format.

What I would like to do is find a way to convert a triangle mesh to a quad mesh. This would give me a great deal more flexibility.