http://www.lfs.net/?page=screenshots&section=misc
-Pack 9 (Rockingham) (21 sep 2009)
How i can actually turn these "graphics" better?
Is it some pack, or something to do with payable download thingy?

I dont understand what are u trying to ask. The high resolution textures?

yeah a bit weird question, what i ment was, how i can switch those better track textures?

You can't, those aren't released yet. Although there's track mods that have high res textures.

Quote from kimd41 :

Although there's track mods that have high res textures.

^
to find in this section http://www.lfsforum.net/forumdisplay.php?f=39

or LFSdatabase

Yes, the pack you are referring to contains screenshots from an unreleased track.