ITDB02 LCD Module Questions

Does anyone have the ITDB02 LCD Touchscreen Module? What are you interfacing it with? I have an Arduino Mega with the Mega Shield by ITead Studio along with the 16-bit 3.2 inch ITDB02 LCD TouchScreen with SD Card.

I need help using this LCD Module. How do you create buttons and like a small user interface? I want two buttons, up and down, adding 1 to a number and subtracting 1 from a number. What is the best way to do this?

I am really new with this LCD Module but will learn very fast if I have some guidance.

Thanks!