Mosets Tree is written with US addresses in mind so when you want to use an UK address format you need to make a few minor adjustments to your template to alter the display order of the fields that build up the address. This will not affect storage of these details in your database, just how they are shown. You can also alter the display order of the fields in the admin section to make it also match the UK address format.

Solution

Alter the files in your template as follows. As you can see you are only changing the display order of some fields which then give yout he correct UK address format.

sub_listingSummary.tpl.php

foreach( array( 4,5,6,7,8 ) AS $address_field_id )

to

foreach( array( 4,5,6,8,7 ) AS $address_field_id )

and

($this->config->getTemParam('displayAddressInOneRow','1') && !in_array($field->getId(),array(4,5,6,7,8))

to

($this->config->getTemParam('displayAddressInOneRow','1') && !in_array($field->getId(),array(4,5,6,8,7))

sub_listingDetails.tpl.php

foreach( array( 4,5,6,7,8 ) AS $address_field_id )

to

foreach( array( 4,5,6,8,7 ) AS $address_field_id )