Hi jciraczz,
I'm sorry to hear that Test Day didn't go as well as hoped. Before we talk about that specific event, it would help if you could provide a bit more information on how you've been studying and your goals:
1) Can you go into more detail about the study materials that you've used so far? Were they books? Classes? Which practice CATs did you use? Etc.
2) How have you scored on EACH of your CATs (including the Quant and Verbal Scaled Scores for EACH)?
3) What were the Quant and Verbal Scaled Scores for your Official GMAT (the 430)?
Goals:
4) When are you planning to apply to Business School?
5) When you say that you "need" a 600+, what does that mean exactly? Is that a minimum score requirement to apply? Would a 600 guarantee you entry (and how do you know that?)?
GMAT assassins aren't born, they're made,
Rich