Okay we posted on top of each other.
Best thing really since I have no idea what you have changed since then is start in the control panel.
And go one by one through your settings.
Even if they appear correct still select the submit.
You probably are okay with the user/group permissions.
It really does not take that long.
If you were a little more intimate with the software you could just scroll through the config.inc.php file with a text editor and make changes there.
I don't recommend that in your case.
And did I say this before. BACKUP YOUR SITE when done.