T.Ed can save 2 kinds of terrains. Objects, and heightmaps. Objects are loaded with Load Object as normal. Heightmaps + supertextures need to be loaded with a terrain plugin. Advanced terrains of part of DBP and is included. (I'd suggest using BlitzTerrains however)
Help on using terrain plugins can be found in the forums.
As for collisions, no, by default no collisions will be enabled. To set collisions up, you can either user the sucky built in collisions, or search for a collision plugin. (I recommend sparkys.)
Again, help and more information on this can be found by searching the forum.
My signature is NOT a moderator plaything! Stop changing it!
