Need Help Building AntiCheat

Hello, I represent a new gaming league that is hosting games including LoL, ava, crossfire, cod 4, among others. We have been looking into getting an anticheat built for our league, but have run into a few difficulties. We had hired a few coders to build us an anticheat, but one has dropped out of contact, and the other has little experience in building it. We are looking for someone to lend there help.

We may be able to give out some rewards for helping us (Ie VOIP servers, game servers, dedicated servers...)

When we first met the coders, we gave them a list of items we wished to have in the anticheat.

-Screenshots taken at random intervals of 20-60 seconds
-Process tree monitoring and reporting
-Scan harddrives for .dlls
-Uploading to database
-Encryption of all files being uploaded
-Login with website database

We also had some more advanced features we wished to put in including

-Able to detect launch of game, and thus starting the anticheat
-Able to detect any dlls being injected after launch of anticheat
-Chatroom capability

This sounds like a program that would be constantly running in the background of a computer. Would this program be launched by the user? Or would it be automatically started on computer start (which is malicious). If you could provide more information on this program, I can help with all of the above (Process tree monitoring may be the only thing that would seem difficult to me).

All of the items you describe sound fairly easy, I could definitely help if you still need it...