Hi,
all arduino ported libs you can find will work nowadays, for example platenspeler's lib, check the URL 3 posts above this one
only thing you need to do is connect DIO0,1,2 to any digital pins because dragino didnt connect them by default, so just make three wires yourself from the breakout solderpoints labeled DIO0,1 and 2 to any digital pins on the shield (but don't use the ones used for SPI which are 10,11,12,13!!) and configure the example sketch accordingly (look for the examples folder), for example connect DIO 0/1/2 to D2,D5,D6 and configure the dio array in the lib to {2,5,6}