Hi,

The account was sold to me for 0.75BTC.
https://bitcointalk.org/index.php?topic=979657.0

You could have PMed this account after you noticed it, and I would have noticed it and the deal would have been off.
I checked everything I could, recent posts (it was almost recent, so I naturally thought he was the original owner. But you could be an imposter, since you could simply set up everything after you see a Warning "Password has been changed recently")

The issue is not complicated as long as you do not provide a signed address from past quoted by someone, etc. If you provide that, then I am not sure what we will do.

I have been trying to contact the seller for quite some time without success. for a signed address.
He probably just went off and didn't login again.