You can also call GMAC or refer to the paper report they sent you. If you have a 4 on that part, people don't pay more attention to the GMAT score. If you apply for MBA, work experiences and PS matter more.
It always depends on your creditials on other parts. If you are strong enough, such as a letter from CEO with top-shcoo MBA, you can try those top schools, say top 10? They can always provide education loan for international students with some banks like citi. You should hurry up, or the second round is closed?
Even you have a very bright GMAT score, it still mean nothing with a poor work experience.