Lars,
Hi.
I am in the process of upgrading the site. There are some issues running the data-model upgrade scripts from the old version openacs.org is running on postgresql 7.3. I finally tracked down the problems with acs-kernel by upgrading on postgresql 7.2 before dumping the data.
Bugtracker is also taking a little effort along with ETP. I haven't even looked at forums yet :)
Upgrading the site is in the works, I will provide an update soon.