Quote - Again I see no reason for Terrapak atm, I don't want Atms I don't want mats I want to know how to make em correctly

While TerraPak has a number of fine textures in it, you might want to take a peek at this thread. It's where the original discussion of Terragen vs Vue took place which generated the TerraPak product. TerraPak is more of a technique than a set of materials. It has a good size manual which takes you through, step-by-step, how to create complicated materials which can also create very realistic scenes.

I was pretty much, like you, concerned over the 'hyper-real' Terragen renders and why I couldn't get the same result in Vue. IMO, one of the problems with Terragen, is it doesn't render scenes with a lot of foliage near as well as Vue-- probably because they don't have EcoSystems which generate a unique instance of all plants.

I also have a collection of free tutorials at my website. The one on Fog and Haze might be helpful for you to look at, but it hasn't been updated to reflect the Spectral atmospheres. But, you should know, there have been a lot of fine rendering using just the standard atmosphere settings.

Another good product to look at is Bruno's atmosphere collections over at C3D. Good luck!