A torrent is the term applied to this way of downloading. Basically you start downloading a file from other peoples computers a bit from each. As you get bits of the file you also send bits to other people. Once you have the whole file you can keep offering it for download for others. If you have the whole file you are called a seed. If there are no seeds then it may be that the whole file is not available. As with any peer to peer download you need to be carful not to be compromised by viruses or spyware. There are lots of torrent sites available. Most are free as is Azurus.
Cy Marven