Resizing

How do you resize in an image window when your UV mapping?
Also, is there a way export a map of some kind so when im making textures, ill know where to place what elements?

just like all the Blender windows, you can zoom in the Image window with Numpad +

You can take a screenshot of a window with Ctrl-F3, so what you could do is map the faces on a blank image, save the screen and then use it as a model.

Martin