Ok, I am presuming the Deluxe version works like all the other Sims 2 games and their expansions. (it should, I really cant see why it wouldnt?)
When installing any of the expansions you are just adding extra content to the orginal game. But once you install an expansion the previous installed expansions desktop shortcut no longer works. Meaning the game will only start from the last installed expansions shortcut. Understand?
So its not like you can start each expansion seperately as they are all intergrated with the original Sims 2 game.
You are not actually installing seperate games, you are only adding to the original game but now you start the game from the last installed shortcut.
Hope that is all clear enough for you to understand.