SlaveToTheLime
If you are looking for a way to protect your computer from all the bad things that are out there on the gnutella network and internet then forum members can offer advice on that.
However, you seem to want to hide from the authorities and if that is the case then you have come to the wrong place.
I understand that in the US you have the "Patriot Act" which give the authorities the right to look into and investigate any part of your life they want to. And in Europe there are various European wide and national laws that do the same thing.
And I am sure that you have seen in the media, both national and international, the clamp down P2P users, producers and facilitators.
Therefore, you cannot expect any legitimate company, like the Limewire Org., to offer ways to circumvent regulations and tracking systems put in place by the authorities, if they did the government would close them down.
So, get a good firewall, Peer Guardian 2, a good AV app, two or three anti-spyware apps and, above all, practice safe surfing.
UK Bob