debbackports
Using Debian Backports (sarge)
1. Edit /etc/apt/sources.list
deb http://www.backports.org/debian sarge-backports main contrib non-free
2. Run apt-get update
3a. Install some backport
# apt-get -t sarge-backports install mutt
3b. (Alternative) edit /etc/apt/preferences
All backports are deactivated by default. You have to set a higher priority for each backport. For example for mutt, you add these lines:
Package: mutt Pin: release a=sarge-backports Pin-Priority: 999