No, you're doing it correctly. It's just that the BVH file has set the figure's hip X,Y,Z coords to be somewhere else in your poser space. You just have to find him. Back out, turn around, etc. until you do. To move him back to center, you can adjust the X,Y,Z of the "body"; there are some gotchas when doing this, but if you're careful, it usually works.