Looks like you are seeing too many flops, and not winning enough pots that don't go to showdown (ie playing too passively).
You should download pokertracker btw, even if the unregistered version can only hold 1000 hands or so. Or! You could download Holdem manager, which is in beta: http://www.holdemmanager.net/
These stats really are too undetailed to say much, except that yeah, you're playing half your hands which is not good  |