I don’t think that will work (The faking of lights).
But try plugging the normal node into the “Normal” input of the material and then connect the “color” output to the output node.
At the moment you have the normals information going from the material to the normal node, which is sending the normal data to a color input, which won’t work.
If you could explain a little better about what you mean about “Faking lights” Do you want the model to be shadeless in the view-port or do you want to fake some sort of AO etc?
EDIT!: I just re-read your post, if you go the “Game” header in the upper menu (the one with file, add etc) you’ll see, under the “Game” head, an option to turn on GLSL shaders in the view-port.
Select this option and then go into the textured mode, that should, depending on your node set-up show what ever is in the material preview window.
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