Hi Jason,
Finally I have found where the change needs to be made.
Globals/globals.php
change
$WAGLOBAL_Country = 'US';
$WAGLOBAL_State = 'CA';
to
$WAGLOBAL_Country = 'GB';
This seems to work fine. I hope it doesn't effect other areas.
I don't know very much about coding but this is a guess.
Aladdin