Torrents are easy to deal with. Basically think of them as a little back end that downloads a file (or files) from 1+ other sources/users.
Go to www.bittorrent.com
download and install the linux client for it then put in the URL you posted. That should automatically handle the file until it's downloaded.
I personally love using it when getting a linux distribution. For me it tends to be a bit faster than downloading directly from one source and, more importantly, it saves the host some bandwidth.