The last time I used Itead I had four boards, each 100mm x 25mm, panelised into one 100mm x 100mm board. They came back with grooves cut in them so I could separate them simply by snapping. I'm still awaiting my first order from Elecrow but I get the impression that they do so too.
Well you've got it connected properly so all you need to do is use the appropriate libraries to communicate with it. As mentioned above you need the Wire library to do the actual communication part, and an RTC library to set and read the time.