Fantastic Contraption is broken and doesn't work for anyone with the current iPhone/iPod Operating System.
I have been waiting 3 months already and there has been no update for iPod or Fantastic Contraption.
If you want to play the game now, you must downgrade your iPod.
Google for instructions on how to downgrade your iPod OS to version 4.1
If you are a genius then you might be able to follow the instructions you find with google and be able to play the game.
For the most of us, Fantastic Contraption is broken and can't be played at all.
Sorry you lost your $1.99