The prop works if parented to the hip of the figure as instructed.... in Windows.

There seems to be a problem with some of the poses when using it on the Mac version of Poser. I have looked at those particular pose files which do not work and they do have some code in there which does not belong to the pose (keyframes for a walk pose). Maybe that is the cause of the problem on the Mac or it could be a poser configuration problem.

Estherau will test this and see of a cleaned pose file fixes that problem