This is the first version of Booktype to have automated install configuration questions (in multiple languages), thanks to debconf. You can install these packages with any program that supports dependency resolution, for example:
sudo gdebi booktype*.deb
Booktype 2.0 requires Redis server 2.8 or later, a version which is available in Ubuntu 14.04 but not Debian wheezy. If your Debian server runs wheezy, make sure you have the wheezy-backports apt repository set up. There should be a line similar to:
If this sounds like too much trouble, you can create an account for yourself on http://booktype-dev.sourcefabric.org/ instead, and try the pre-release versions there.