LW 4.12.3 has stopped those spam files causing that with copyright file search results. Update now to stop it: http://www.limewire.com/english/content/download.shtml

But those fake file results will still show so be aware. If you get say 100 results for one file, 99 for the next, etc. then they're probably fake results & you'll never downld them. So choose those that are around 10 or 20 or so hosts for the file under the # column.