This is the webpage of what I purchased from them Display 5 inch TFT Arduino Touch Shield w/SSD1963 for Mega/Due On the bottom of the page they give a variety of documentation and I will attach a couple PDF's that I downloaded from there. In addition they have modified Libraries with examples for touch and the TFT but no other peripherals in the zip file.
ER-TFTM050-5_Datasheet.pdf (693 KB)
ER-AS-SSD1963—Arduino-Schematic-Diagram.pdf (198 KB)
Libraries-Examples_ER-TFTM050-5.zip (109 KB)