Facebook raffle app

This app will be used to raffle an iphone for customers from a local grossery store. But only for customers who have spent more than $50 in this store. - User will visit the store fanpage, go to the Raffle Tab - Authorize the app. - He will insert a coupon number (which will be given to him in the store) - Also his Name, Documents Number, Address ATENTION: An account must be generated for this user so he can add more coupons later and have more chances to win - Answer a question “What makes your Xmas special?” - Get a confirmation message Second part - After the confirmation message the user will have the option to generate Xmas message, a image with his Answer applied to Xmas themed image and share to his wall. (a image with text applied PHP GB?) - If the user says yes the image is generated, if the user says NO, a default message will be posted to his wall More details: - we can use this app as base as I have purchased it already [login to view URL] - or we can use Drupal for user and coupons management I have used in a similar project [login to view URL] and works really fine