I am trying to install a torrent file computer game?

the website has instructions but I am not able to follow.. I am somewhat computer illiterate in most aspects. the website a href="http://www.btarena.org/games/sid-meiers-civilization-iv-colonization-reloaded" rel="nofollow"http://www.btarena.org/games/sid-meiers-…/a has instructions.. can someone "translate" or put in lamens terms for me? I am running windows vista on my laptop Thank you in advance