Clone of socialprintshop.com - Facebook Poster Generator

We need a generator such it is on [login to view URL] - so the user can generator a Wallpaper or Poster with their facebook friends. Same features as on the written page, it should be easy to use and also should be done so, that with the script 5000 user / hour can generate their poster. Please post with your offer what do you want to make and HOW do you want to make this.