Where Can I Find A Keygen For The Game Mount And Blade What Does Burn Or Mount The Image Mean?

What does Burn or Mount the Image Mean? - where can i find a keygen for the game mount and blade

I have downloaded a game from a torrent site and the Council are the following:
1. Unrar.
2. Burn or mount the image.
3. Install the game with the crack down in the crack directory on the DVD.
4. Install the update from 1001, in the crack directory.
5. Copy the contents of crack to your installation directory.
6. Play The Game.
Can you explain what this means and how
Thank you:]