problem importing meshes as terrain...Object2Terrain.js OSX

I’ve copy/paste code listed in wiki and created the Object2Terrain.js document, located this in the Editor folder of project. I can’t get it to work? It doesn’t show up in the Terrain menu and I just don’t know what to do here differently. Also (but may be related to terrain not being right), a FPS game object was put in the scene, but it just falls through the “floor”…ugh!!

Any help on this would be wonderful!

Thanks!
George

(OSX, blender 2.57, .fbx, u3d 63135)

I’m trying too to get Object2Terrain working.

Also, the FPS game object just falls because the floor doesn’t have any mesh collider, making it a ghost object.