4KM x 2KM base maps
These base maps are designed for use with Multimap.com images at a scale of 1:25,000. They can take both OS maps images and aerial images at that resolution. The file below has some documentation on how to use these base maps other than that thought they are offered un-supported. The base maps do work in TRS04 but they haven't been tested in TRS06 it is up to the end user to fix any possible errors for TRS06.
*Files currently available*