These are links to people that have more information on this subject, info I think can also benifit you. Sometimes, when you are stumped, all it takes is a different perspective. If something doesn't make sense, don't give up on it. Hunt around and see what others have to say about it. Certain words, terms and phrases used in different context may suddenly begin to make sense to you. So if you can't get the answers here, here are some other places to check out.

3D Design for the Sims - Operated by the mesh master Jerome of Sim Freaks, he has a guide that just may help you out. Also listed in several languages.

Kehlahn.com - Not only has he created some fabulous programs essential to skinners, but he has also made a wonderful meshing tutorial.

The Sims Resource - Many tutorials on basic skinning and custom textures. Also has many helpful forums and a chat room to hang out in and ask more questions.

Jennova's Body Shoppe - Down at this moment for exceeding bandwidth, but hopefully that will clear up soon!

Jereme Online - Photo-Shop tutorials and tips

More as I find them!