problem with animated model

We have a problem with a model that has a walk animation. If we import it we see the bones moving but the visible stuff, the polySurface, isn’t moving. How can I fix this?

If the bones are moving but not the mesh, that means the bones are not attached to the mesh. Maybe a problem generated on export? if the model animates in the

Send it to me at yertari@msn.com and ill take a look

Steve