Having confirmed my foolishness on this question many times, completely understand the feeling of exasperation it causes. Any defined volume of the usual three dimentions does have a center, this has been taught and proved many times to my complete satisfaction. Why this should break down at a cosmological scale, confess it still escapes my limited, and diminished understanding. If we could locate the micropoint of the orgin of the BB, it would be 'close enough' for me to call it the 'center' of our universe, then that's just me. Since all time and all the matter of our universe would have been contained within that point as well, it would be the same as saying the 'center' is everywhere, now.

Charles Bennett, the WMAP principal investigator at NASA's Goddard Space Flight Center, was asked to discuss what the WMAP data says about the ultimate fate of the universe. As a joke, the writer added "in five words or less."

Bennett replied: "The universe will expand forever."

Just wish me were half that sharp and quick, am not, sorry.