what i got, using the free homer simpson model and HOM or SMS, was the errors saying "body part not found" or similar, then I applied it anway, and the arms stuck straight out. I could tell the walk itself was good, but in simpson's case the legs crossed into each other, and the feet twisted around (regardless of IK). editing the bvh file to change the names helped the arms a bit, but the legs were still pretty bad. simpson is a buttox-free P3-like model.