the animation rigid body stuff was experimental in the 2.49 code and was not fully working, I spent quite a bit of time checking the values and matching them up to values in blender, cone twist and hinge I'm confident are correct, but would certainly like it verified by a new pair of eyes. There are still things to polish here as there is still some data not accounted for like capsule rotation, and export is not matching import. This is the path I am following currently.