Grumble.
This model is, I have to say, one of the most shoddily built ever. But, I believe that have ascertained the cause of your problem.
See, instead of having the attachment points children of the appropriate nodes (you know, head being a child of the head bone, hands being attached to the hands, etc etc etc), the creator has opted for
animating the attachment points themselves.
Inefficient, illogical, ineffective, and horribly impractical.
So what you need to do, is acquire yourself (if you haven't got it already)
Magos' Model Editor. Go to Windows -> Node Manager.
Notice how the attachment points are all down the bottom, rather than spread out evenly through the heirarchy. In fact, notice the almost complete
lack of heirarchy.
What you need to do, is right-click and 'edit node' on each of the attachments - go to each of the sections 'translation' and 'rotation', and delete
everything.
Now, you will need to use the right-click and 'move up/down/right/left' commands to shunt the points around to their appropriate homes. (It would appear he has no head bone, so shove head and overhead on the torso.)
That should solve your problem. Unless there is more to this shoddiness than meets the eye.
JASS: