Please help because with the new blockchain.info design there is no way to sign an address.
I'm aware of that. However, it's not for me to decide what is sufficient to prove ownership.
We (xetsr, shorena and I) have already left negative trust to your (hacked) account, so it hopefully won't be used to scam anyone else.
Currently, it's about recovering it (-> giving control back to you).
In the sticky thread (
here) theymos is pretty clear about the requirement of a signed message.
I very rarely recover accounts if you can't prove ownership as described above. There are alternative ways of proving ownership, but they take too much time. If I point you to this thread, you can't prove ownership properly, and then I ignore your future PMs, this means that I'm not going to recover your account. Create a new one.
You can take a shot though, PM theymos, explain the situation and point to this thread.
Good luck with it!