Artificial Intelligence (AI) applications

I'd brought the backend engine, but now want to deploy in my site with some modification. Please see this site samples: mediasemantics dot com / SamplesAvatarChat dot htm You can see it's just like the MSN function, I tried to change it to use our designed avatars, it works. But the major problems for this tool are: 1. if there are more than 2 person (say, A, B and C)enter to the chatroom at the same time, then A choose B to chat, while C doesn't know. And C choose the B at the same time, C won't never know what happen, but C can't get any response forever. 2. I would like to launch this service, and want to let more than 200 people to play it at the same time. So, I have to let the users to know the others online or offline. 3. I want to make a table, with different timeslot, and then the link for each timeslot is generated by the tailor-made system. When the student login, he can see his schedule only, and then 1 more teacher / student know this schedule, and can talk to him at the same time. 4. I need the schedule that I can have an admin to setup, and then register by the student itself. 5. You can go to the above site to download the trial server and software to test what I want, I don't know what languages they use. 6. Another request: mediasemantics dot com / SamplesLipSyncTest dot asp THis sample shows you that you can record your voice, and then play it back by the character with Lip Sync. I want to do the same thing with using my character. However, this service provider don't the source code by some reasons. I want to ask the awards service provider to do the same program for me. Any further information seek, just let me know.