Just received my Yonguo EX560-11 speedlite to go with my Nikon D7000. Can someone tell me how I go about setting it up to work with my camera. I believe I need to go into a Commander mode on the camera where I configure the settings and that I don't need a trigger. I have little time before a photo class where speedlite photography will be taught. With only a day to go I need to be prepared before the class. The camera is also new so I'm experiencing a steep learning curve having previously owned a Canon 400D. I would be very grateful for any help and advise please as I often feel overwhelmed with technology speak.