I suggest you when posting a old post head line it with this is a repeat of a old post dated X.
If you do this then no one will get confused and think news was just released. I think the way yours was posted appeared to be a fresh release and misleading. I am sure you didn't mean for it to be but when you represent it as I said there can be no way anyone could mistake it for a new release unless they just didn't read your showing it was a old release, then its their fault.