Thanks for your reply. Here is a sampling of the frames:

I've had such a tough time with the coordinates in Poser compared to other programs. How do I find the body transform? My impression was that the body is placed into the space via the hip, because when I rotate the hip the whole body rotates rigidly. Then, every other body part is defined relative to it. Are there any good sources for the coordinates that are used? I find the Poser manual to be cryptic in this regard.