Answer questions about circuit board production.

Hello! I would like to produce 100 of the circuit board shown here: [login to view URL]:mamepanel Please download the .zip file for readme's and circuit designs etc. I have a basic understanding of how this would be done but I need some questions answered. I would need some one who has experience in producing their own circuit boards. The questions are: 1 - Can the configuration of the buttons be changed once the Atmega32 is programmed? 2 - How is this done? 3 - Is there a user GUI to edit settings? 4 - Where would be the best place to have the circuit boards produced online? 5 - Where would be the best place to buy the Atmega32 chip and the other components? 6 - Which USB chip burner/programmer would be best to use?