[bluef0x]

I'm not really sure what your goals are Sun... do you just want to improve your credit score so that loans taken out in the future can be had at better rates? If so, maybe open up a couple credit cards and just wait a few years.... again, AMEX is messed up and you can get 25k credit with them if your accepted. That will in turn let you increase your other cards.... since companies will see that you have a 25k card and will be more accepting to giving you a higher limit.

There's no short-term way to improve your credit other than a minor increase by removing some inquiries w/bumping, but that can backfire and probably isn't worth it.