Fix my file sharing script

Hello Freelancers, I need a professional coder to fix/update my file sharing site. www,[login to view URL] is my site and I need the following to be updated/fixed: 1. Fix facebook connect feature so it can work properly 2. Add streaming feature for .mp4, .avi, .wmv and other video formats because right now only .flv is stream-able [login to view URL] system for users to earn money 4. Simple admin backend to see registered users, files and so I can delete any user/file I want My budget for this is under $100 as it is just fixing/updating some features. Thank You,