JJ, you must have missed some steps in the installation process.
You downloaded the files into /home/public/download/openacs/openacs-4 but they *should* reside in /web/service0. If you have a symlink, then all should be fine.
Furthermore, if you run into installation problems like these, there are a couple of options if you want to do an evaluation:
a) Get the windows version
b) test it on the test servers
It is really strange that you run into these problems, you must have missed one step in the installation instructions as I just did a rerun of my script at http://cognovis.de/developer/en/openacs_setup and it works like a charm. I made it more bullet proof, just copy paste.
What I learned is that I will definitely create a downloadable package with Postgres, AOLserver, OpenACS / .LRN with my install scripts. But that is something for the future, for now, just use the scripts provided :).
