So is there any existing code available at SourceForge, or has it all been pulled? (I can't seem to find any.)

Honestly, I really have no idea even where to start... I just know I want to write what will ultimately be a Vista Media Center interface for downloading music from the Gnutella network, using Visual Basic. If you could give me any pointers, samples, etc. I would appreciate it. I'm used to OOP, where I know what the objects are and how they are defined, etc. but can't seem to find any details out there for how to do such things with Gnutella...