The only way to get better there is practice, practice and then some more. Have a look how the ball reacts to landing on different spots.
Depending on the wind, if it's the left pin, try land a couple of yards short and left with full bs and hopefully it trickles towards the pin. DON'T be too short here, you don't want a 15 ft putt that you have to tap 2 ft :-). With the right pin the ball stops quite well (provided you don't hit the slope before the pin) or will roll sideways depending on the wind, so there you can pretty much go for the pin. Under the pin is obviously better. Just need to get your distance right, but in both cases full bs is needed more often than not.
Hope this helps, Good Luck.