Tried installing and got it to work once, though it timed out. Tried a dozen more times and got the same permissions error others are reporting. Confirmed my permissions setup, reinstalled, confirmed permissions again and still get the same error:
You do not have permission to view this page or perform this action.
Any advice / help would be greatly appreciated. Lord knows why this functionality requires an addon and isn't a part of the core system.
Thanks in advance.