69968 Service Desk

Hello, Programmers, I am looking for a complete service desk system which have 1) Tichet Management, 2) Knowledge Base, 3) Downloads, 4) Self-Service, 5) Admin tools (such as reporting, activity monitoring etc.), 6) other modules you can suggest. This system will be run on Windows 2000/xp platform. So, please use asp.net and vb scripts to design it. And please consider the server side licence protection and hosting service model. I hope this project can be done in 25 days. So, people who have a ready-to-go solution will have the higher bid priority. Thanks