There is a thread here in wjunction with an excellent tutorial on how to install rtorrent/rutorrent which is based on forums dot rutorrent dot org thread found here
->
Code:
http://forums.rutorrent.org/index.php?topic=608.0
With this script , you can create multiple user accounts , install a secure ftp server, choose a web server to work with (personal preference nginx - more light on resources)
Another excellent torrent client with aggressive seeding properties is deluge.
Code:
http://totallynoob.com/deluge-torrent-server-seedbox-ubuntu-headless
ftp server you have to install it yourself . Google how to install and configure vsftpd . very easy
If you rent a linux vps but you have a windows background and insist on using μTorrent, then you must install wine , download (a good old version like 1.8.5 or 2.2.1) μTorrent from filehippo or oldapps and run μΤorrent via wine. Before that , you must install desktop gui of your preference and vnc ( I use NXserver which is more secure than vnc)
hope my views helped you