Well, eventually I will be able to help there.
I've been using Hex to learn all aspects of modeling. But beware. One of the areas that is still rather buggy is the uv mapping function. I have gotten it to work on one model, including exporting a uv map with textures, but on other models it doesn't work properly unless I map first with UV Mapper and then import the model back in as an obj.
I think part of the problem is other areas of the program including obj export have some minor bugs. For example a model may look good in Hex, but when exported with nothing but shading domains (same thing as a material group) and opened in
Poser, some areas of the model are black. If I then use some of UV Mappers tools, I find that those portions of the model may have inverted normals, or non-planar faces.
There is a basic mapping tut available. Will find it later for you.