HELP with LCD shield

Hey all i wonder if anyone can point me in the direction of a library that will run the DF robot lcd shield on an UNO,
ive downloaded a few, but can never get all the function buttons on the voltage divider to work,,
im new to all this and im desperately trying to get a project up and running, basically im controlling stepper motor that i want to operate with a few set programs in the menu system that im hoping the lcd shield can help me with!
if ive posted in the wrong place please forgive me but any help would be awesome!

thanks!!!