Hi ciphergoth, I've made some changes this morning that make the Less Wrong code base compatible with PostgreSQL 8.3, which is available in the karmic repositories. The change is on the 'postgres-8.3' branch in git. I have run through and revised the Hacking on Less Wrong wiki page this morning on an Ubuntu 9.10 install and have confirmed that it works. It would be great if you could have another go at getting the code up and running and let me know how you go.