question regarding 2 different mk3 satnav disks available

[lumberjack]

Hi again.

I have upgraded to v32 firmware and have a uk - Ireland 2010-2011 disc but it does not have postcode support on it so I have to use the 2007-2008 disk which has, but is obviously not as useful being so old.

I have seen availability of 2 different 2011 mk3 compatible cd's

7 digit postcode search facility without tmc
5 digit postcode search facility with tmc

Which I understand are from two different makers so to speak but NOT Navteq.

I would like to try and find and download the second one but as it is not navteq I don't know what to search for.

thanks for any advice or help you might be able to give