Did you read what I posted? There is no "downtown" in New Orleans. It is "uptown." :-)
Well, I somehow completely missed your point (sorry about that, I got 2 hours sleep last night). All I know is that I worked in the Central Business District of N.O. for many, many years and we always called it either the "CBD" or "downtown". And to us, "uptown" is the Garden District. Guess different people call it different things. Is that OK?