Gnotella doesn't work anymore because you have to manually update the gnutella hosts files which has totally changed, especially with dyanamic IP addresses. I switched to gnucleus then I found shareaza... You'll love Shareaza if you're like me. It has all of the features of gnotella and more. And it's the next generation gnutella client with G2 protocols. (healther for the network, global searching and more!)
Get it at www.shareaza.com
or search it on gnutella for shareaza1800.exe

You'll thank me for this.

Oh by the way it works on any windows platform... Not yet on Linux or Mac yet.