I don't think the new version has anything to do with the viruses increase.. I'm afraid it is a fact of life for p2p and there are those who would rather it did not exist and they might just have something to do with it... possibly
The Tips and tricks forum has a number of stickies you can read about the subject ..Follow this link:-
http://www.gnutellaforums.com/forumd...?s=&forumid=81
Just remember that most programmes are several megabites at least and anything of the size of 1/3 of a MB is not likely to be a proper programme atall.