I agree with Noah but this 30 day late is five years old and even if it gets deleted I wouldn't expect much of an increases in your scores.
I just pulled my Experian Credit report and it states I have a potential negative item. I have a 30 day past due from chase that was recorded in Nov of 2002. It is the year 2007. How can i get this taken off of my report or am i stuck until it comes off on its own. It states the account will be in positive status in August 2009. Thanks for the help everyone