uTorrent Seeding

How can I seed using uTorrent on my Mac? I realize once a torrent is downloaded, it will automatically seed. But after seeding for quite some time (and my ratio changing on uTorrent) I checked SoftMP3 and my uploaded amount hasn't changed. Also, iTunes automatically copies all my music into the Music>iTunes>iTunes Music folder. Is it possible to delete the originally downloaded content (since it is copied into iTunes) and seed it directly from the iTunes folder? Also, is it possible to seed 24/7 by keeping the files on my Time Capsule?