First, thank you both for your help. I noticed that in the data folder that one of the folders is i13 Estate Agent and the other just 13 Estate Agent. I was thinking that might be one of the problems but not the reason for the stretching of the mesh.  And in the readme there is no mention of the pmd, just this file belonging in the data file

RE_Pants_11796.dsf

I don't see any mention of the pmd file when looking through the duf file in notepad++. I have redownloaded DSON (was thinking I might have needed a version update). Will post after I've updated it.

The dust settled, thinking "what a fine home, at least for now" not realizing that doom would soon be coming in the form of a vacuum cleaner.