Have you gone to the nav room and used the nav helper in front of the door to open it?
Hmm, I don't believe I have no, what does the nav room look like?
It is a door at the end of a hall in one of the upper areas. You will need to go to the white halls off the center core room to get to the access tunnel that leads to it. Good luck!
Ah that was it, thanks! Awesome game!