Oh, dear, tinamuddy! I'm sure this is very upsetting for you. I'm not sure why there was a difference between a deed in lieu and a foreclosure because of not having a title. Deed in lieu is essentially the same as a foreclosure, except the owner/mortgagor is prompting the foreclosure to take place faster than a normal foreclosure.
So, why isn't there a deed?? I'm not sure that's even possible. Is it just that you don't have a copy of the deed?? There has to be a deed! Did you contact the county? I'm sure the lender established a deed.
Now, as for the HELOC, did you contact that lender about the deed in lieu or the foreclosure?? They would have had to foreclose on you as well. It's quite possible they may not even be aware of everything that's happened. A foreclosure sale is not like a short sale. Once the property has been foreclosed on, the BANK that forecloses OWNS the property and they have no obligation to your HELOC company. So, I suspect, unless there was a pre-determined deal between the HELOC lender and your primary lender, there was no communication (believe me, been doing this enough to know that nobody talks to anybody, even if it's the SAME bank!).
I am going to suggest you contact a good real estate attorney to get this all straightened out. OR, if you want to spend a good chunk of time on the phone, you can make some calls to get answers and THEN consult an attorney. In any event, this is not something that falls within the scope of what agents do.
But, good luck with everything!!!