Well I guess I better save for the $400 putter then if it truly will help my putting. LOL Unfortunately it isn't the putter that's flawed.
Having glanced at your stats and your equipment might I make a few suggestions. First off get rid of that hybrid and add another wedge, as I see your approach shot avg to pin is over 20 ft. Wedges will help you get closer to the hole and therefore allow your putting avg to go down. Then view the putting tutorials on youtube, they will help you understand putting. There's a few of them out there. Then use course management and play to your strenths, what ever they are. Join a CC and make friends, most everyone in a CC will be glad to help your game, just ask.
Then for good measure, practice, practice, and practice some more. Play 9 hole rounds and take notes. There is no easy FIX for bad putting, but if your willing to learn, there is a lot of help out there for you.