When you save the skins save then to your desktop and rightclick on them and click "rename" rename it to "skin name.wsz" the WSZ part is very important. if you are using XP and you dont have the file extentions showing then right click on start click "explore" then a new window will open up. At the top of the new window there are some buttons, click "tools" then click on "folder options" Then a new window will open click on "veiw" and scroll down the list untill you find "show file extentions" click on the box beside it then click on at the top the button called "Apply to all folders" cick it then close down everything and the file extentions should be there.