The ITDB02 LCD module is work in 3.3V voltage level and it's not compatible with Arduino MEGA pins, so we make a shield for Arduino MEGA. Now user can directly plug the ITDB02 in the shield and stand on the Arduino MEGA board.
The ITDB02 MEGA shield V1.1 supports both 16 bit mode and 8 bit mode ITDB02, you can use 2.4" or 3.2" with it. Different form the ITDB02 Arduino shield v1.2, now MEGA have enough pins for using SD card and Touch function at the same time. Not just the SD card and Touch function, there is a DS1307 on the board so you can also use the RTC function.
Now the latest ITDB02 library example is compatible with the ITDB02 shield but not the MEGA shield, you can modify the setting to make it compatible with MEGA shield.
You can download the latest library in the ITDB02 library project on Google code: http://code.google.com/p/itdb02
How to use the SD card socket? The ITDB02 library has not include the functions for SD card, but we can offer you a existent filelogger library for Arduino, the pins of ITDB02 shield is compatible with this library. You can download it here: http://code.google.com/p/arduino-filelogger
How to use the RTC? Here is the Arduino library for DS1307.