A lenny install appears to work (synaptic install, emsetup, apt-get update, apt-get upgrade) but after installing and upgrading emchain complains that binutils is too old - but says it requires exactly the same version that is already installed. A Sid install complains that libc6 is too old and requires libc6 2.7-10 - which doesn't appear to be available on the sid servers or the emdebian repositories.