I want to add a post code look up to the order_info.php
I have a javascript that needs to be added somewhere but I'm not sure where to do so so it's included in this page.
 
Can anyone help?

Not sure what you mean? Can you describe what you're looking for with this feature?

Hi, I've managed to solve this now, my only problem is I want the custom field I now have on the personal details section of the checkout process (order_info.php) to be copied across to the delivery details when the checkbox to copy across is ticked. Is this possible?