Quote - uses Gnutella protocol to spread through p2p clients like BearShare that implements this protocol."

yes, this is the primary worm-style transportation method. this would mean that it has its own ability to either automatically add itself to the share queue if you have a Gnutella-like P2P application running, or it has it's own P2P engine.

Quote - "From what I have been told I believe you have to be using a P2P programe and downloading pirated stuff in order to get this particular virus."

at first? yes. this is its preferred method of propegation. but once it's in the system it can propegate so long as an infected file moves between hosts. to borrow from arcady's example there's was an accepted primary transmission method, but there were ancilliary methods. this is no different.

Quote - so this is not a virus you get from visiting a website  but you have to open an infected exe or scr file to get it?

now? yes, it's possible if you download and execute. DAZ* was catching much flack over the weekend as people who were already infected from another source were getting hits from the EXEs they were downloading as polipos was infecting them as they arrived.

*DAZ has since made sure that they did not have infected installers in their distribution chain.