Well, 18 months and for me they will all be gone. Maybe with some GW I'll have some early light at the end of the tunnel I collapsed on myself...
Found on Credit.com
Because scoring systems are so focused on predicting whether or not you’ll go at least 90 days late, surprisingly, 30 or 60 day late payments that occurred long ago are actually not that damaging to your credit scores as long as it is an isolated incident. It’s when your accounts are recently reported 30 or 60 days past due on your credit reports that your credit scores plummet temporarily.
If 30 or 60 day late payments are an infrequent occurrence, they shouldn’t cause lasting damage to your credit score unless they are recent (last two years or so) or 30 or 60 day late payments on a regular basis. In this case, the fact that you are habitually late with your payments will cause long term damage to your credit scores.
It’s a whole new ballgame once you have a 90 day late payment, however. If you have been over 90 days late (even just once), the credit scoring models consider you much more likely to do it again. One 90 day late payment will damage your credit for up to seven years. From a scoring perspective, a single 90 day late payment is as damaging to your credit scores as a bankruptcy filing, a tax lien, a collection, a judgment or repossession. Being 90 days late causes you to be viewed as a possible “repeat offender” and a higher risk to creditors. Here’s a summary of how late payments impact your credit scores:
- 30 days late – This record will damage your credit scores most when it is recent. The exception is if you are 30 days late often. Otherwise, a single 30-day late payment should not cause lasting damage.
- 60 days late – Similarly, recent 60 day late payments cause the most damage. Again, the exception is if you are 60 days late often which will certainly hurt your scores. Otherwise, one late payment should not cause long term damage.
- 90 days late – This record will damage your credit scores significantly for up to 7 years. It doesn’t make a difference whether or not your account is currently 90 days late. Remember, the goal of the scoring model is to predict whether or not you will pay 90 days late or later on any credit obligation. By showing that you have already done so means that you are more likely to do it again compared to someone who has never been 90 days late. As such, your credit scores will drop.
- 120+ days late – Late payment reporting beyond the initial 90 day missed payment does not cause additional credit score damage directly. However, there is an indirect impact to your scores. At this point, your debt is usually “charged off” or sold to a 3rd party collection agency. Both of these occurrences are reported on your credit files and will lower your credit scores further.
I swear I read somewhere that the 30 and 60 eventually stop being an issue, but over 90 will hurt you until the very end. 
So my fico just went up another 2 points and now at 795. Does this mean when I hit 800 I will get dropped in another bucket and be down at the bottom where all the goo is?