Creating an application for Facebook(repost)

Hello, we need to develop an application for facebook. Users in FB can create and upload an event (party, birthdays, concerts, etc) by filling out a simple form. Since we have the same form in our website, we want to develop an application for FB where the information posted in this form can also be posted in our sites. The objective is that users don't have to go to our site and fill out the same form again. The data storage in the application should be connected to our DB.. Waiting for your bids! Thanks