Changed Primary Domain, no more WP site

Real quick. I have a hosting account on GoDaddy. Changed Primary Domain, then changed values in the wp-options table to correspond to new domain.

I have done this before, and have had success. This time, it errs out. The one question that I have that may solve some of this.

Is there a password buried somewhere in WP that allows in to talk to the WP database sitting on the GD server.

The reason that I ask is that I recently changed the password on the WP database, and think this may have derailed the process. Is this password on the GD server.

Any help anyone can offer would be greatly appreciated.

Thanks,