Firstly, check in Admin-Config-My Store that your store is not in Florida or Alabama. They are favourite starting destinations, and tend to cramp your options a bit.
Secondly, download the Big Royal mail modules from the downloads are. That has some quite good documentation on the Uk, zones and things, and how to create them.
Finally, www.mutualadvantage.co.uk used to have a complete free UK template setup for Zen Cart that may still be available.




