CTE TFT LCD/SD Shield for Arduino MEGA problems with SDCard facility

I have purchased a Sainsmart shield for Arduino MEGA 2560 R3 called "CTE TFT LCD/SD Shield".

The sheild has a SDCard slot on it but I cannot find any information on how to enable the SDCard and get it working?

My first aim to start with is to just write information to the SD card on the shield (to a basic text file for example to start with). My objective is to learn how to write information to the SD Card to start with.

My request for help is if anybody has a sketch to be able to get me started?

Best Regards Dean