Ok I must be doing something wrong, but I can't seem to get the IGM to work on the Xbox version.

On about the 2nd or 3rd page of the manual it says to hold the Left and Right trigger, and then a menu is supposed to appear in the corner of the screen similar to the one on corners.

I have also seen on one of the screens when the game is loading that it has the Left trigger and one of the analogue controls.