This link should help you :)

http://www.thepalace.com/wonder/poser/posebuilder/character_creation.html

Just make sure that anything you offer from textures to morphs are 100% your own creation and not derivatives of existing textures and morphs, and that any resources you use allow you to use them for such purposes.

Also, don't forget a readme file. Also, please name it something other than "readme.txt" :)  Include in it a contact address if someone needs to contact you.  Whether you allow redistribution of your files.  Any credits for resources which you used. And whether your items can be used commercially.

"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