I just Beat The GMAT!

Hi all, I have been following this forum for almost an year. Coming to my story, I have given my GMAT in Jan this year and scored 590 (Q-48, V-24, AWA-4.5). I am aiming atleast for mid 600s. As I was not happy with my performance I self studied for almost 6 months and gave it again in Jul 2011. Second time my score was 560 ( Q-41, V-25, AWA - 4.5). I live in malaysia and only Princeton review has its presence here in Kuala lumpur. I need some suggestions on how to prepare and beat the GMAT. I heard Knewton has a very good online training sessions and also have fee refund in case the score is not increased by 50 points. Any pointers?

I would also be interested in forming a study group with bunch of students in Kuala lumpur. Anyone interested?