Current questions and answers regarding the map editor.

Yes, then select tables, and so on, create a folder, create a dialogue file, and that's it.

Then double-click on the file name, using special keys (Ser9K listed them), you first create cameras, then CameraSets, and then you configure the dialogues themselves. I personally configured the animation through the properties tree.

Could you please tell me where I can download an editor for "TOTE" (Tribes of the East)?

My internet connection doesn't allow me to download it right now, but I think I know a way that might work for you with a good internet connection. Find a complete NCF pack; there's an editor inside, and it's only slightly different from the standard one (or maybe it's not different at all). While you're at it, take a look and see what it is.