If you don't want to use a walkthrough then just do this. After talking to the robot/lady person go back to tres bien, then the detention center [I think you have to talk to Maggey then,so talk, present CD,etc,do that yourself!],then go to criminal place and talk to Gumshoe. Present the CD, talk some more, you should now have all the info you need and you can go back to blue screens. Hope this helps anyone who's stuck!