EnglishBob,

I know Colourcurvature created a really good program for solving reverse deformation of joints, I helped beta test if for him. His program is great for making joint corrections.

It was on sale for a while but I have not seen it lately, which is a great loss. There were some small issues with normals being sometimes distorted at the joint boundaries but he had created a fix which always worked for me. From dealing with him in the beta he is a perfectionist ( I mean that as a compliment ) and I think he was troubled that the program didn't get everything perfect every time.

Vilters,

You don't need UV's in a morph target for Poser, so losing them is generally not a problem. All that Poser needs in an .obj to import a morph target is the vertex position statements. You can remove the vt and vn entries from an .obj and it is still good as a morph target. ( In fact I believe this is the preferred method of distribution as it avoids breaking copyright on the source mesh ). If you are wanting to observe how your morph affects a texture on your object whilst you are making it, then I would absolutely agree that you need to retain UV's for that to work.