Package: buildd.emdebian.org http://www.emdebian.org/packages/index.html contains the following apt-sources:
apt sources deb http://buildd.emdebian.org/emdebian/ unstable main deb http://buildd.emdebian.org/emdebian/ testing main Sources deb-src http://buildd.emdebian.org/emdebian/ unstable main deb-src http://buildd.emdebian.org/emdebian/ testing main I added those to software sources. Installing the emdebian tools messed up the lenny dpkg package. Make clear that those repositories should not be added on the host machine.

