Try looking into getting a secured credit card. Basically your credit is limited to the amount at you give them initially, ie. $200 and that is your limit, 300, 400 and so on. Some of those secured credit cards also have the option of after a year or so switching that secured account to a traditional credit card. A good company to check out for this is orchard bank cards. They also have one that you can start your limit off at 200 or 300 (can't recall been a while since i checked it out) and you can add money towards it to increase your limit. They also have the option of switching to a traditional card in a years time or so. providing your make your payments on time and if possible pay more than the minimum. hope this helps you. Its not easy to rebuild but it can be done. good luck.
Here is the link to their home page..
http://www.orchardbank.com/