Help with the Columbus Terrain mod.

[pagenotfound]

Ok I downloaded it once before and  it worked perfectly, but now I have  a problem. I accidently deleted it and now i reinstalled it. But the thing is it looks nothing like it should and I keep geting patches of a yellowish grassy terrain. 
Why is it not working now?

[prince1142003]

That's normal. The yellow grass changes with the seasons into green grass, and then back into yellow grass, and the cycle repeats again.