Submit Button is not active Make sure you have uploaded ALL of the required images.
Share a private skin
Go to your profile page, and make sure your skin is on your profile. From your browser's menu select View Source to bring up the code. (In Firefox, go to View--Page Source. In IE, go to View--Source.)
Search for or scroll down until you find this line:
<div id="p_center">
Right underneath, there is a <style> tag. Copy everything in between <style type="text/css"> and </style>
Send this to your friends, and have them paste it in the Style box on the Customize Profile page. Make sure your friends remove any skin they might have on their profile, and any code they might have in the Style box before they paste in your skin's code.