CMS PHP script for 2 Monthly Adult Photo Contests

I want to host 2 monthly contests running simultaneously every month. The two categories are Nicest Tits and Nicest Ass. Contestants can only submit One Photo Per Category Per Contest, but they can upload more images to their profile page. 2 types of members have to be able to sign up and log in, ( Contestants and Judges). It is to be written in PHP and have an admin section to change ad banners every month along with other admin controls. It needs to be installed to my server along with any database configuring in order to get it functioning properly. I will be displaying it through a frame on my website so it will have to be set to the appropriate size and blend seamlessly. see attachment for more details.