First thinga First; I noticed your power supply isn't grounded to mains power. It would probably be good to get that fixed, too many things can go wrong.
To your issues:
I'm not familiar with the controller board you are using bit have a few suggestions/questions. Have you tuned your stepper drivers as the wiki describes. Also some boards, like the ramps 1.4, have two 12v inputs. Motor power could be separate from heaters. Do the motors home? Are there any error messages when connecting to the host program. Try to take your time with it, I don't think anybody who has built there printer has had it work first try, or the second...