It's not working. Maybe you:
- put a "b" instead of a "c" in the file name like "b503fa_girlie" instead of "c503fa_girlie" in the cut and paste process of a pre-written .cmx file

-Should put the main body part like "HEAD" or "PELVIS" section last in the list of sections

-ended your file name with .skn from copying the file name. It doesn't need the end tag in the .cmx file

-mistyped a letter

-forgot or added a "0" in the buffers between sections or at the end

-if all else fails, take off some parts, and add them one at a time, testing them in Simshow untill you find out which section you wrote was the bad one.

The Thumbnail is missing and so is the head when you try to use it to make selections:

-Check the head .cmx. If you used Bodywarp to make it, there's a good chance it put down PELVIS instead of HEAD in there. That will do it. How do I know? I've done it before, more than once.