Reload gun clip:
To reload you gun, locate a character that trades gun clips and trade your used one for a fully loaded one.
After completing the 1st puzzle go back to it and take the fuses back. They will remain in your inventory and can be re-used on future puzzles.
To unlock a bonus photo, when Locke takes you to the hatch, go up to it and take a picture of the numbers. You will get a bonus photo.
The Odyssey book:
In level 2, go to the plane's cockpit and pick up the odyssey book to get $40.