Hi, welcome to the forums. Sorry to hear you have errors on your report. It's very common, unfortunately.
This info is supplied by your lenders, past and present, to the credit bureaus, and the credit bureaus then supply it for scoring. Fair Isaac crunches the numbers that are supplied to them --they don't do "research", per se.
Either a lender is reporting incorrectly, or the credit bureau or bureaus are recording and reporting incorrectly. That's where the error probably arises, and so they are the ones who are responsible for fixing it.
It's annoying to have to fix other people's mistakes, but this is your credit, and eventually your money. If you want it off, there's lots of info here on how to do this. You might start with Credit Scoring 101 and then look around in Frequently Requested Threads. These are both posted at the top of the General Credit Issues board. Here's the URL for Credit Scoring 101:
http://ficoforums.myfico.com/fico/board/message?board.id=ficoscoring&thread.id=2654
By the way, I work 60 to 70 hours a week at two jobs, and as best as I can tell, pretty much everyone else here works full-time in paying jobs and/or in running households and raising children. I guess like anything else, if something is important or rewarding enough, you find the time for it. Good luck
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007