loubee,
If you've been gone for 6 years, chances are most of these debts are past their SOL. If you have the conscience of mind to pay them, send them PFD's. Do not achnowledge the debt, just be willing to settle it if they delete it from your CR. Since they are probably past SOL, they should be willing to work with you.
If however, you're still just getting back on your feet and don't have the means to settle, these baddies should all be falling off within the next 12 - 24 months. It's time to start working on a fresh credit history with secured cards and active lines of credit.
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!