The best solution i have is http-tunnel however it costs money (not much), but i feel VERY much worth it
www.http-tunnel.com all you got to do is download the tunnel, and then run kazaa lite and set it to use 127.0.0.1 as your socks5 proxy server. low and behold you are downloading at FULL speed. Just remember, the tunnel doesn't like uploading, it has some 'issues' with uploading large files cause it has to load it all in ram which if its a 700mb movie file, well you get the idea.... just turn off sharing in kazaa