Firstly you have to chuck everything in a zip file, make sure to keep the folder structure.
then upload the zip file to your Sta.sh. From there go into your Sta.sh and select the zip
file you just uploaded and click submit. That brings you to the submit page you'll recognize,
you then go through the normal process of selecting category, keywords etc. The only
thing you will need to add is a preview image and that will be a little link in the top right
corner of the window that shows your zip file.
Click submit and bobs your uncle, your item will be live for download.