360 is, I think, a scammed version of Limewire (not 100% sure) but you will be just as well off downloading Limewire basic for free from

http://www.limewire.com/english/content/download.shtml You will find out about the pro version there also. That costs 18.88$US

and btw you are in the Bearshare forum, but everyone seems to start off here

But then again 360 may be a version of Bearshare in which case ignore everything I've said....... I am not feeling myself today