Attached Link: http://koti.mbnet.fi/~ilaripih/MPEHome/

I found out not long ago that just making and saving a .jpg file isn't enough. You need Mat Pose Edit. Once you have used Mat Pose Edit to create the proper files, you make a render inside poser using the texture and save it in as a size 90x90 .png file to the library folder and you will have a thumbnail image.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi