OH SNAP! you used the T*rrent word on the internet, you don know the Internet Police run national scans daily trying to catch ill eagle downloaders....
Oh stop being giant douche-handles guys. This kid obviously made a mistake, hop off his nuts. That being said, the internet police will be at your door shortly. It's best to just submit, lest you be tazed. Violently.
The t*rrent you downloaded will be in your "downloads" folder probably, once it's finished. Then just go into iTunes and import file and then choose the t*rrent you downloaded.