I'm going to rub salt on that sore spot again....
Why is the display on a second breadboard? There is plenty of room on the other one.
Why is there no 5V connection to the max chip?
Those 2 caps are not connected because there is no ground connection to that site or the breadboard.
How is the Arduino connected? Can't see that now...
Not looked at your pictures on that other site. If they are important, please post them here.