Facebook App needed

We need to have a facebook app developed to gain new subscribers to our main site and to gain facebook fans. *The premise of the app will be a monthly give-away. To be in the draw to win, facebook users need to provide their details and answer a question. We will simply need to collect basic data eg name, email, postcode, gender. These details will need to link to our existing database. *The question will be a multiple choice question. *We will need to have the ability to update the prize and question ourselves each month. *We will also be supplying the artwork. **APP MUST BE DEVELOPED STRICTLY WITHIN FACEBOOK'S PROMOTIONAL GUIDELINES**