Shipping Zones within UK

Hi,

I want to use the zonal Shipping method within one country,UK.
It seems you can only use ISO 1 codes for zonal shipping,I would like to be using ISO codes 2 and 3 .Can this be achieved?

Do I need to download a further shipping module.If so Which one?

I use a courier to deliver goods so a system that identifies post codes would be great.

Weight and size is not an issue.

Thank you for any help provided

don't know if it will completely help you but it is a start in the contribution section there is a Big Royal Mail addon you can install. Has courier settings, Royalmail, and parcelforce. IF you goto the forum for it, you can download a beta version which has international standard parcels, euro 24, datapost etc as well. It has Wales, England, Scotland - Northern Ireland - Channel Islands.

About postcode I don't think it will check say someone type IV and give you the rate it should be on.