You have the seed. Make a new wallet and restore from the seed.
From what I understand from his story he has the seed and password for the wallet that the coins are not in and he is now looking for a way to enter the default wallet. Maybe TS did not write down anything from the dafault wallet, went on to create a new wallet and saved that information, only to send coins to the default wallet of which the info was not saved.
TS, Did you try to see if the password and seed open or recover the file? (you probably did this)
Otherwise the only thing that you may be able to do is try all of the passwords you used in the past, perhaps you entered that one there. Do you write the stuff down somewhere? Maybe you also wrote the default wallet stuff down.