http://sarpi.fatdog.eu/index.php?p=rtorrent-arm
The SARPi project for rTorrent has been updated with libsigc++-2.10.0 and new packages have been built to install and run rTorrent 0.9.6 on Slackware ARM current.
Read the tutorial which has also been updated. You´ll get the picture.
So go grab some Slackware ISO .torrents and knock yourselves out with it!
Cheers!