My example Facebook store.
My store template
Capx and callback.php can be found in my tutorial:
Files, please leave positive comments while there and upvote my tutorial.
Make sure you do not complete purchase, unless you want to. I wouldn't mind a donation towards getting my business license on here and when my game is up it will be added to the in game currency. :) Anyways, enjoy I hope it helps you all make a fortune.