Alright. I realise this thread has been dead for a while, but the problem still exists!
I've been digging around the FSX SDK, trying to figure out how this all works.
Is it just me or is the documentation not quite up to date/correct? It lists all the regions, but does not mention region Z (New Zealand) which IS built in. The problem, however, seems to be that there are NO textures for this region, so everything reverts back to region B textures. The SDK also mentions a naming nomenclature for the textures that doesn't quite add up to the textures I'm looking at (the spreadsheet mentioned below seems to help with finding the right files).
There's a pretty good spreadsheet with screenshots over
here, I'm thinking that if I at least change some of the nz landclass type (i.e find a type that has better looking textures in region B), things should improve.
Ideally we need to find out if we can get FSX to look up region Z textures, then create a whole set of these (possibly renamed textures from other regions). I've only just started delving into this, thus I am unsure as to whether this is possible. As I said, what the SDK talks about and what I see in the files/textures etc doesn't quite seem to match up.
Anyhow, just curious to see if anyone else is still working on this and what, if anything, they have found out.