I have looked at these 'enhanced ' textures, and they are exactly the same as the normal ones, just twice as big. I have, to be honest no idea what to do with them? Drop them in the original folders? And the textures themselves are exactly the same, so how are they enhanced? I'm puzzled, and not just about this. As Marcel says, I don't fully understand the file structure either.
So far, my textures are based on the normal textures, maybe if AH releases a paintkit...
NATS (0005) by
JanKees Blom, on Flickr
NATS (0004) by
JanKees Blom, on Flickr