filing multiple bankruptcy cases

Subject: filing chapter 7 again Question: Hello,I want to know if I was discharged from a chapter 7 in 2003 or 2004, can I in 08 file again for a chapter 7 due to a hardship, it would be for a car for 20,500 i also have a credit card that i probably would keep with limit at 1,000 and payments are only 30 a month. I'm also a authorized user for my mom's AMEX and the is on my credit-what will happen to that? I...