Can anyboby please provide link to tutorials on how to use polytrans and milkshape3d softwares.I need help regarding import export of bvh and .xsi data in them
my wild guess is, you want to use these apps as intermediate exporter to game engine or something, probably to DirectX. If so, I think it's good idea to bring a coder/programmer to the board. Both bvh and dotxsi allows textual format, dotxsi is similar to DirectX.
Even you'll find your tut, and recipe from tutorial works, still there is a chance for problems, usually impossible to solve from user-interface point of view.