For Xtorrent 1.1 (build 53) Instructions:
1) Download the disk image from the official site. (http://www.xtorrentp2p.com/)
2) Install the software wherever you want.
3) Run the software. Quit it.
4) Drag the file “org.xlife.Xtorrent.plist” into
/Users/yourusername/Library/Preferences and change the existing file.
Now you can use Xtorrent with any restriction.
Enjoy! PS. I have tried it several times and it always work. I hope the same for you.