need a script on facebook fan page similar to this.
[[url removed, login to view]!/pages/Free-Farmville-Rare-Items-Play-the-Slots-Today-and-WIN/363663724188?v=app_106883959332752&ref=ts]
simply put a user may not be able to move on to the next stage unless they complete the step before.
coder need to have a page up to show product completed.
would need the script well commented as well zipped up.
let me know cost and timeline.