do /etc/apt/sources.list přidat

deb http://backports.debian.org/debian-backports lenny-backports main

instalace balíčku pak pomocí

apt-get -t lenny-backports install "package"

viz http://backports.debian.org/Instructions/

Normally packages won't get upgraded automatically from backports.debian.org (due to the NotAutomatic flag). To get packages that you have installed from backports automatically updated you have to have add a pinning, either to /etc/apt/preferences:

Package: *

Pin: release a=lenny-backports
Pin-Priority: 200

jinak nebudeme stahovat nové verze.