it sounds like you're missing something...
Lets break it down a bit, do you already have the heroengine blade and launcher installed ?
You said you had formatted.... and so I'm a bit confused heh, have you downloaded and installed a fresh copy of the launcher and the blade?
if you did format then you'll need to reinstall the autolauncher, the blade etc, the autolauncher first.
Before you install the autolauncher you should install and update java, .net4.0, directx runtimes and distribs.