Taken from Gamespot:
"Have another torrent on your PC. Like bitcomet, which I use.
My Documents -> My Games -> Final Fantasy XIV -> Downloads -> ffxiv -> 48eca647 -> Metainfo -> double Click the Utorrent file for your download (D2010.11.25.0002 is todays patch)
Your torrent program should open on its own.
Make sure u select the destination for the download on utorrent as: My Documents/My Games/ Final Fantasy XIV/downloads
You'll be done in under 20mins."