Newb Client Question

[newb_gnutella]

Hi,

I am new to this site. I am interested in developing my own client for Gnutella network. I program in Visual Basic (3 years) and c++ (6 months). However, I have a few questions.

This is a stupid question but are there any copyright restrictions I should know about, (would I be violating any rules of GNutella.Com)..
Have any of you made your own client?


Sorry for all the newbie questions.

Oh one more thing.

I have been researching for the followuing questions:

Different between p2p and Napster. Is GNutella p2p, I wasn't sure if Gnutella had a main server which had files upload to it, or a server that contains a user list which allows p2p access.

Thanks in advance.