If the account has not been charged off at the time of payment, it should not show up on a credit report. This is because the creditor will close the books on the account. Further transactions such as reporting the delinquency won't take place.
However, if the original debt is "settled" then it more than likely will show up on a credit report. This can happen any time up to nine years after the settlement. Usually, a lawyer or small collections agency will purchase the old, charged off & settled debt for pennies on the dollar. Then, they add their own terms and conditions to this "new" debt - such as monthly non-payment fees etc. The debt you once settled for 50% is now 60% larger than the settled balance
it's a snowball.
And it's also hook, line, and sinker. Once this debt is on your report, you're likely going to pay it. And it will stay there for another 7 years.
The best advise is to move forward. A $33 debt will not actually hurt your credit. It's explainable, and most all lenders will look right past it when reviewing your credit. It's when they start to see four or five or six $33 debts that you couldn't or didn't pay that they will think twice about lending to you.