I recently bought the exact same bundle, and it came with zero documentation. :X I have already popped the +5V on-board power regulator, thanks to one of the two display ribbon cable ends being crimped on backwards and my own stupidity for not checking the stripe on the cable since the connectors were keyed. (Not that I could have identified pin 1 on half of the connectors anyway without silk-screened numbers or dot/notch hints on the boards, but I digress.)
I'm curious how you hooked the display up, as in which cable on the adapter card goes to which connector on the LCD? I flashed Repetier 0.91 built with the RRD graphic smart controller drivers, but only the back light seems to work. I cranked the contrast potentiometer slowly until there were black boxes on the screen, which might help in your case if you are not seeing anything on the display. I don't know if my display board wasn't damaged by the bad cable, so I can't offer any other hints to fix your display since I never got mine working outside of the back light.....
I'm curious how you hooked the display up, as in which cable on the adapter card goes to which connector on the LCD? I flashed Repetier 0.91 built with the RRD graphic smart controller drivers, but only the back light seems to work. I cranked the contrast potentiometer slowly until there were black boxes on the screen, which might help in your case if you are not seeing anything on the display. I don't know if my display board wasn't damaged by the bad cable, so I can't offer any other hints to fix your display since I never got mine working outside of the back light.....