[SOLVED] Help! I Broke my WP INstallation!

I was getting ready to take our WP site "live":

I was in Dashboard - Settings - General and was just getting ready to make the necessary changes, I inadvertently changed the WordPress Address (URL)

from http://www.hatchtown.com/wp/

to http://www.hatchtown.com

I then saved the change, AND THEN realized I'd meant to change the Blog Address NOT the WordPress address

I quickly re-set the AP addess back to include the /wp/ subdirectory, but it was too late. I can't get in, view the WP site, or anything.

Via my FTP program I can see that all the WP files, subdirectories, etc, are still there. How do I set this right?

Help! My wife's gonna kill me!