Dont trust programs and the one your downloading now is probably a virus as well..
If you still feel you must always check to see if it's been rated on Bitzi...
Theses threads will explain what Bitzi is and info on viruses on the network...
http://www.gnutellaforums.com/showthread.php?t=37676 http://www.gnutellaforums.com/showthread.php?t=41432