Problems with the map and how to fix them:
-Collision being broken
The reason it takes a while to make these maps is because you cannot just duplicate the model and make that the collision. Tork only allows convex collision so raycasting and the likes work (and thus, building and whatever works). You have to make the collision manually.
If collision making was that easy, I would have had Kitchen out the day I announced it.
- Textures
I'm taking a stab at it and you probably found the kitchen model somewhere on google, which is fine, but it doesn't have any of the UV mappings the original map does. To get the proper model of the kitchen (or any interior), you need:
Torque 3D 1.1 (google also helps here)
The map and the textures for it (named correctly)
Load the interior into Torque 3D, and make sure the textures are visible in the editor, then export as collada. Boom, textures.
This is probably a terrible explananation, but that gives me the incentive to make a tutorial video for making maps.
I'll put my kitchen map in a dropbox link and share it so you could finish it if you want.
EDIT:
https://www.dropbox.com/sh/a7me59ysu03wuyi/AAAKpq9BcQStLv5c4DLodgRza?dl=0