The info you provided was absolutely great. Thanks. I did notice one in particular did change the date, but because I had a copy of an old report file, I called the reporting agency and brought it to their attention. The ended up removing it when it was originally supposed to come off..instead of extending it based on the "revised" date the collection agency changed it to.
So I guess it's good to keep the old reports as references.
Thanks again for all your help. :)