I really screwed up. Can you tell me where in the database Ultimate Branding sits?

Hi guys.
The newby REALLY screwed up. I searched for how to include the username inside one of my widgets and came across a post that showed the content :
<?php
global $current_user;
if ( isset($current_user) ) {
echo $current_user->user_login;
}
?>

I placed this content in the input field for "Admin Message" within ultimate branding.
Obviously NOT GOOD.
So now, I do not get an administrative screen at all!
and I can not get back to the Admin Message screen of Ultimate Branding - or any other screen for that matter.
I have spent the last hour searching for Ultimate Branding within my database so that I can remove the killer entry.
I can not find it, nor a file where this might be saved.

Please help.

Thanks.