social networking site continuation

here is a project:- 1. project is repost and need to be continued where last company left it 2. work can be seen when NDA is signed, more details in pmb. 3. for right now, you can know that it will be something a mixture of chat, yellowpages, facebook, music and much more 4. payment only on milestones 5. no upfront 6. to be start of immediate 7. best review coders and example of sites will be selected one 8. need to be expert in [login to view URL] 9. need updates in every 3 hours and need many coders on project 10. databse should be robust and full flexible typo3 admin needed. 11. i am a reputed project manager for a very big company who runs social netowrking site with 10 million users, so i need every in and out of php and database, so DB should be perfect serious companies only, no freelancers, we are way behind due to inability to complete it by previous company, no upfront payments as we lost much money, payments after completing milestones only, more details in PM thanks