Quote - RobynsVeil...

about Poser "forgetting" the copied joint information...

Did you try from the menu Edit > Memorize > Figure immediately after copying the joint info from V4WM to your clothing figure?

This might solve the problem. 

For those who have the problem with saving the joint zones in the Pz3 - Did you use SR1?

I have no problems saving the joint zones - If I load the scene after a restart, all the joint zones are as I have left them