Zach,
I tried the 3rd licence number you kindly sent - screen of doom again.
I decided to go through the whole install again (4th time) and noticed that on your product page for the download section you have an input field for the license for downloading. I tried all 3 licenses in this and only the 1st one was accepted - so I downloaded that zip (in case the download added the license number into the zip file somewhere) and installed that with the 1st number in the extension settings. No change - I still get the screen of doom for both www and non www URLs for my site.
I don’t think I have mentioned yet but:
My EE system is 1.6.7 and its runnning on PHP5 - I have not seen any install restrictions in your documentation so am assuming that I don’t need EE 1.6.8.
System Directory is not masked and is renamed (nto system).
I did notice when I disabled and re-enabled the extension the license number had vanished - assumed that was normal. Do I need to set permissions on any of the upload files?
I don’t know what to try next.