Good Info sources:
http://www.limewire.com/index.htm Check the developers section
A couple of things I have written:
http://forums.gnutelliums.com/Forum1/HTML/000032.html
http://forums.gnutelliums.com/Forum1/HTML/000024.html


MAC users FURI load instructions:
http://www.jps.net/williamw/furi/mac_readme.html
enjoy
walt
If I may suggest START with Limewire, its easier then switch to FURI, its a better program at this time.

Walt