THE MUSIC INDUSTRY CLAIMS to have lost millions of dollars in revenues over the past few years due to peer-to-peer trading of songs over the Internet. Now, television and movie producers are concerned that their industries could also be hit hard through online file-sharing of shows and movies through such software programs as BitTorrent and Videora. Just who is doing this downloading and why? ************************** IAN IS A 17-YEAR-OLD TORONTO high-school student who has been fixing computers since he was 12 and is acknowledged by his family and friends to be a technological whiz kid. He spends four to five...