Actually, you should simply check out the demo projects in WME. Just to get knowledge of the standard scripts, like game.script, scene.script and so on.
If you then want to try a FP Game, simply start removing the actor from the scene_init.script of the Demo room for example. Then you also have to remove the "LeftClick" action in the scene.script ( in the main scripts folder ), to aviod the actor walking of course.
If you look into the script for Objects, like the book.script for example, you'll notice that in every action ( like "LeftClick", "LookAt" or whatever ), there's first a line which tells the actor to walk to that object. This line can be safely removed in your case.
If you did that, you actually have a first person game.
As for talking, usually you use actor.Talk("Blah"); in your scripts. Since you don't have an actor, you can add a simple entity to your scene. Entitys can "talk" to, so that problem is solved too.
That's all you have to check as far as I know.
And don't be afraid of spamming the forum, it's here for help
Just check out the WME Tutorials and the Wiki before you answer questions that are clearly answered there.
Spellbreaker