Ok, I'm starting to get there now... :) I followed your directions above to go to Admin : Other : Enable Content localization, however that appeared to do nothing at all really. The English/French/Spanish pages all came out in English, and if I entered translated information into one module, it looked the same no matter which language was selected.

Then I went into Admin : Languages and there was a link there that said something about enabling localized content, and gave me all kinds of warnings about being irreversible once selected.  However THAT was the right one to use - all of a sudden, DNN seemed to realize that different languages should be tied to different content, and entering new content while in the French language did NOT change it in the English/Spanish versions as well.

I am having one last problem now. Now that I enabled localized content, the static resources no longer seem to be working. For example, I edited the static resource file for the tab names in Spanish, and changed Home to Casa. When I go that page home, it still says something like "Home (sp-SP)". I went into the Page/Language settings and made sure that it says that localization is enabled and clicked the Publish button. Nothing changes however.

What am I doing wrong?

Sebastian, you may have seen my other post in a similar thread. What is your recommendation on setting up the best localization solution for DNN 5 or 6 (I have both set up and am debating on which to use for this particular project)?