Level Select:
Highlight the microphone on the left side of the main menu in the Campaign. Press the Right
Mouse Button, then type idaho. Now you should be able to sellect any mission from the accessed
drop down menu.

Invinvibility:
Type "I am the ace" at the loading screen after the briefing you will be invincible for that mission.

All Scrapbook Pictures: 
In the campaign main menu go to previous missions click the Rogue Pilots & Co. symbol on the
bottom left then type ispy.