Build a Website -- 2

I need a php motion script edited with the edits listed below. Yes I have the script and my own hosting my site is peepschat.com. If you have any creative idea just let me know I am very reseptive 1.I need control over who can post media. I.e.a section in the admin panel that allows me to give or deny permissons 2. Artist need control over their media (if it can be downloaded or not) 3. Is there away to set up paypal so users can sale their media? 4. Capabilty for users to log in with their facbook or google plus accounts I