Jason,
I also noticed that my DB does not have the fields mentioned either. I just looked at this thread as I was using PG for the first time on a production site.
One of the issue I also had is that it does not have the correct path to the javascript files and css files when using the code to embed on any php page. The link from the admin to view the gallery works fine, but embedding on any page will just show the photos with no styles or javascript.
Best regards.
Brian