Accounts cannot legally be re-aged to report for longer then the original reporting period.
Even if you paid the negative accounts off in Nov, 07 -- Nov, 07 would still be the fall off date.
Paying an old negative account without requesting deletion will "update" the account to make it look newer than it actually is. (updating is not re-aging)
Since the accounts are so old, by the time they are updated to reflect the payment they would probably be close to dropping off or already off of your reports. You may be successful in disputing the accounts as being obsolete and have them removed early.
If you have not requested validation before you start discussing payment, you should.
Among other things the collector should prove that they actually have a legal right to collect on the debt.
You should also check the collecting SOL for your state. If you are past the collecting SOL you have a legal right to not pay and to send the collector a SOL letter informing them the debt is no longer legally collectible.
If you are past the collecting SOL and you still want to pay, you would probably be able to get them to agree to reduce the amount significantly and consider it "payment in full" since the only way they can "legally" collect a SOL debt is by your offer to pay.
Never speak to a collector on the phone, do everything in writing.
Never sign your name on anything you send to a collector, only print your initials or type your name.
Always send things to collectors certified mail return receipt.
Never pay a collector unless they sign an agreement that they consider the agreed amount is "payment in full" and that they will delete what they had placed on your reports.
Never pay by personal check, pay using money orders or cashiers checks.