No screenshots out yet. Sorry.
From the very beginning Netmap is present with its own homepage:
You will find the usual blah-blah there, that is: source code, documentation, and the rest of all of it.
Probably Netmap will be more interesting if the first game actually uses it, huh?
For an introduction you should also read my article which is available
Josef Spillner, March 2001
The MindX Open Source Project