development of LAN based audio conferencing software

how to develop a conferencing software in C#(.Net 2.0) having following features:

1. desktop and application sharing
2. text and voice chat
3. whiteboard
4. file transfer
5. LAN based
6. IP based(like NetMeeting)

considerations:
_I dont have enough knowledge about networking

_what is p2p difference between client/server architecture and which architecture should i prefer in my project development in C#.

_what is socket and udp programming?

_tell me about IP basics

_provide me free e-book or material which is helpful for me to develop this project.

student of computer system engg.
third year
NED University of Engineering and Technology