A torrent is a form of peer-to-peer file transfer. Firstly you need to download a client such as uTorrent or Azureus. Install it. Then, register yourself on a tracker site which is usually the same place you download your .torrent file from. Download the .torrent file. Start the client, and open the .torrent file you just downloaded. It may ask where do want the file to be saved. Then, your client will connect to the tracker. The tracker knows about those people who already have the file. Bits of the file will be copied from the other people's computers to yours. Sit back and wait for it to complete. While you are downloading, you are a "leecher". When it finishes, it becomes available for other to download from you. Now you are a "seeder". Some trackers require that you seed back at least as much as you took. Since other people helped you get the file, it's only fair that you help others. Does that help you?