How do I play the original World In Conflict? I bought the Complete Edition.?

The front cover of the case says World In Conflict Soviet Assault + Bonus Includes Original World In Conflict Game. I have finished the Soviet Assault Campaign so now I want to start the Original. How do I do this? The shortcut for Soviet Assault has an image of a shield but the Original has the image of a white page, I'm guessing something is wrong.