Ive tidied up my repo a bit, if you are using ubuntu hardy, I have packages for amd64. To use them, add
deb http://apt.workbuffer.org/ hardy all
To your /etc/apt/sources.list
For Debian unstable, I only have i386 packages
deb http://apt.workbuffer.org/ unstable all
sudo apt-get install cpan-libkoha-perl
If you want to try my expiremental, Koha package, or if you just want to install the bundle of Koha dependent modules, to make the rest of the install easier, then.
sudo apt-get install cpan-libkoha-support-bundle-perl