Unfortunately, you've found a torrent that has no seeders.
Look near the bottom of the torrent's page and you'll see that there are currently 0 seeders, and 1 leechers (that's you!).
At this point, your best bet is to click on the "Request Reseed" button just below the information above... With any luck, someone who has downloaded that content will still have it (and it'll still be organized the same way) so that they can help you get your own copy!
Good luck! I hope you get your re-seed!