The AOLserver packages on Debian don't have everything you need to run OpenACS.
I modified those packages to have the 3.3ad13 version, plus everything one needs to run OpenACS. They are available at 'deb http://www.brasileiro.net/roberto/debian as33/' (add the line to your /etc/apt/sources.list).
To get this version, instead of the version in the Debian repositories, you have to do (after an 'apt-get update'):
apt-get install aolserver=3.3ad13-1 aolserver-xml=3.3ad13-1 aolserver-postgres=3.3ad13-1
(the -openssl, -dev and -doc packages are also available)
You'll have to fiddle a bit with the generated config file, but that's about it. I haven't done Debian-quality testing on these packages yet, but I have them running on two machines. Let me know if you find any problems.
I understand the AOLserver packages have a new maintainer so I will get in contact with him about including OpenACS-needed modules.
-Roberto