hummm.... I have attached a screen shot of what knossos should look like - you can see there are a lot of mods. Make sure you are looking on the explore tab - near the top left of the screen.
Madia VPs are the up-to-date graphics, sounds etc. you can play the base FS2 game with them by clicking on the media VPs thumbnail. Most of the mods also use the VPs - or a variation thereof - so they all look good. Best thing is that when the media VPs are updated it will update the graphics on most of the mods that use them, so they all start looking better than ever :-)
Hope this helps :-)
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