I'll leave the details about uTorrent out, since I don't really know what is and is not allowed to say, but here's where SE keeps the torrent file you need.

YMMV depending on OS, username, and drive letter, but for me, it's located here:
E:\Users\username\Documents\My Games\FINAL FANTASY XIV\downloads\ffxiv\48eca647\metainfo\D2012.03.07.0000.torrent