If the accounts are more than eight years old, then they probably are past their sol. The reason these accounts are not listed in your report is that, any negative information stays on it for seven and a half years. So, they have dropped off your credit report.
Judgement is a public record and should be mentioned in your CR. Is there are any judgement listed in your credit report?
Check with your county court, any judgement against you would be in the court record. If you can't find any information regarding the judgement, you can then send these people a FOAD letter.