We might need to move this question to another forum - but the moderators will take care of that.
In regards to your question - yes, when a baddie is removed from your report, your score can/should increase. However, there are many many variables to the question and each of the CRAs use a different calculation. If a 30 day late hits you for 50-75 points, having it taken off 'should' bring your score back up that much. However, it may vary due to other items such as account age, utility %, bucket changes... in other words you might not see a point/counterpoint change.
11/14/07 TU 567 - EQ 561 - EX 577
11/29/07 TU ??? - EQ 573 - EX ???
12/10/07 TU ??? - EQ 579 - EX ??? - 60% util - OOPS!