Baggage X-ray machine part 2 - reverse engineering

Delving into the code to get past a password wall! This will probably not make much sense unless you've seen part 1 : http://www.youtube.com/watch?v=KPyE29ABmoA Part 3 : http://youtu.be/M9V3kt0bXNM Part 4 : http://youtu.be5OebkJu48Vw Part 5 : http://www.youtube.com/watch?v=X-gdUVBbTjE Part 6 : http://youtu.be/Q4ffx5eX39E