Please appologize the crossposting, I am, however, under a time constraint and would like to bring the simple matter of requesting a new DB dump to be processed by wikia (which only admins can do). Everything is described in the follwing thread:
A Bureaucrat is a step-above Admins. They basically have all the rights an admin does, but they can grant rights as well. An autoconfirmed user is someone who (to the best of my knowledge) has registered.