While the advise from the previous poster was well meaning, it is wrong.
There are many ways a collection agency can find out where you work without you telling them. In the end if they for some reason can't they can have the court issue a court order that would require you to tell them. Second they can not garnish your wages, or have a lien placed on any property until they have a judgment. Once they have a judgment any Cease Contact letters are basically meaningless because they can get the court to do things for them.
So now back to the OP. A creditor is under NO..that is ZERO, ZIP, NADA obligation to work with a debt settlement company. In fact once a creditor finds out you are with a debt settlement company, more and more are instantly going to filing a suit for the debt. Unfortunately you found this out the hard way. When Sears charged-off the debt, all that means is that they removed it from their books and sold it to another agency. It does NOT remove your obligation to the debt, you just owe that debt to another agency.
From what you wrote here, it appears as if they got a valid judgment. As you were served and seemed to have your day in court to defend yourself. If that is the case you are pretty much out of options to try and get the judgment vacated. Which means they can take additional measures to get you to pay.
Now, it is also against the Federal law for an employer to fire you because of a wage garnishment for a single debt. So if this would have been your only garnishment and they fired you. Not only could you go after your employer for damages, but they could be fined and be subject to jail time.
Another option is a lien, which they seemed to have done. Again unfortunately if it is a valid judgment your only choice is to pay the lien or work out a deal with Suttell for them to agree to release it. When you do this it is best to do EVERYTHING in writing so that you have a paper trail. If you offer them any money, do not send them any money until you have an agreement in place. Also, what ever you do, do not pay them from any of your regular accounts. Have it in writing that it will be by US Postal Service Money orders only. Because if you give them any information on your bank accounts they may use that to attach those and withdraw the money that way.