You have created yet another flame war :P
Not going to get deeply involved, but the theory of the big bang is that when it blew the universe continually expanded, and is continually expanding to this day, leave behind it steadily condensing material that forms into galaxies and other things; now, if this is true, the galaxies are gradually moving away from this center of the big bang because of centrifugal forces when they were dropped from the expanding matter. Therefore, the center of the universe is indeed in the center of the universe.