I redownloaded it and there's still no items.
items? do you mean trees and rocks?
yeah. There's no meshes of any kind showing up in the map. The heightmap, masks, and other textures work fine. It's just that it's barren and has no decorations in it.
I think it might be because I didn't move any files in the "fhobjects" file because I don't know where to put them.