I'm afraid there are lot of these little buggers around. Some are trojans ... some are viruses, some are advertisements for iPods or recordings of Bill Clinton saying he didn't do it. Yes they are small, usually ... and they are auto generated so you can make a typo and still come up with a pile of these little nippers with your misspelled name.
This thread explains a bit.
http://www.gnutellaforums.com/showth...threadid=41432
A lot of windows users download them and find they have infected their computers, and blame Limewire. Mac users tend to notice them and ask sensible questions instead
Vary and repeat your search a little and you will find files that are regular!.. It would be great to have a filter to filter out file sizes. But unless someone at Limewire has a change of heart, it is not going to happen soon