HELP ME PLEASE

i made a skin pack and i want to put it in my interface list but cant... i tried dragging them in, but all that does is change it on the player, it wont drop into the list with the default. someone please help me!!! 

SLoB Wrote:put all the skins into one zip file, rename extension to .xsf then put that into the interfaces folder, it should show up in the list and then give the option to select from the choice within the zip