It depends on whether you try to not download viruses or not. Don't download programs or games, that includes zip files that just happen to be exactly what you are looking for. Look at filesize. The the file seems too small then it really isn't what you are looking for. And last but not least, use common sense when looking at the search results.

Also you might want to read the stickies in the Limewire section, the ones pertaining to the network that is.