Milkshape

Greetings,

I am having a problem rigging joints/skeletons to clothing and flesh to models in Milkshape. I want the faces of the model to deform together without breaking up into seperate groups and revealing hollow regions in the model. ie: gaps develop between seperate groups, and the faces with the texture wont deform smoothly in the animations.

I cannot figure this out, is there a solution?

Regards
Louden