I'm posting here again to see if maybe someone has some insight. I follow the tutorial, I get the dialog box where I'm supposed to find the regions folder and pick the region etc. Unfortunately, the dialog box just does not recognize any attempt to interact with it except to close it. I can't click anything, tab around, shift-click, ctrl-click or beat my keyboard with a rubber chicken while clicking.
I'm not sure if this is a bug or what. Otherwise the game runs perfectly on my system, I just cannot interact with the dialog box in the process of trying to render new regions.
I'm playing on a PowerBook G4 running OSX Tiger.