P2P drawing app

Im trying to make a p2p drawing application (from VB 2008 express) and im just lost with network stuff. The book I have touches on the System.Net namespace but not enough for me to figure this out.

I want to get multiple clients to be able to connect to each other and draw on jpg that is loaded on the form. I figured I could use a binary reader/writer stream for the image. As the jpg would be changed the person who changed the jpg would use the write stream and the other clients would use the read stream to pick up the changes and d/l the new image.

I dont know if this is a good process and if it is how to set up the connection between the clients.

Im still fairly new to VB so any tips on the best process for this or links to tutorials on p2p connections would be great.

Thanks