Please sign this message "7DayPonzi[dot]com" with your address

7DayPonzi - 1QLG62s3BUSHH76EMnVbjSLcDeENA71uAj

He meant you should sign with your wallet in bitcoin-qt or electrum.

I did sign the message in my wallet. I posted that to indicate that it was complete.

Take a look at this link for signing btc addresses https://bitcointalk.org/index.php?topic=223713.0
We can't verify your btc address if you don't post the message, BTC address and signature...

Edit: Also, please post in topic https://bitcointalk.org/index.php?topic=972192.0 to verify that you are really holding btc for that site.