What can I do to help get rid of or limit the spread of these viruses. I just recieved one trojan horse in a ** Edit** song on Limewire and I just want to help anyway possiable to get rid of the people who make or spread these things knowingly. Also make sure I am not spreading anything unknowingly. These things are such a blithe on everyone. Anything I can do please let me know.

And just to add to what Remoc said - if you find an infected file then you can report it on Bitzi. That way, if people look up the file with Bitzi before download (a good thing to do) then they'll see that it's a crappy file & avoid it
There's info about using Bitzi in this thread: How to use Bitzi Web Lookup .. & How to use Magnet Links & Direct Connect/Browse/Chat