What's wrong with your "no support provided" ? You posted on holidays, you just can't demand support being available 24/7 on weekends and holidays too.
About your problem, which wasn't a Zurich problem to begin with:
1) the blurred grass textures doesn't have anything to do with the scenery and with your FSX settings but, it's likely caused by a wrong video card setting. Texture quality is affected mostly by the Anisotropic filter, use a setting that would force 8x or 16x, don't use the application controlled setting. Of course, you can't expect going very close to the grass and see it sharp: those textures were never meant to be seen very close, but with a normal external view distance.
2) Zurich scenery never had "volumetric" grass to begin with, if such thing ever exists in FSX, since volumetric grass is a fancy term for "multiple layers of 2d grass", not a real 3d grass made with shaders like in more advanced graphic engines. We never had such thing, there's only 1 layer of grass that goes around the border of the grass patches on ground, and that's it.
