Okay... knowing the domain makes it easier. I take it you're seeing the under construction page?
Is this you, or someone associated with the domain? I just ask because you had doubts about whether you registered it or not.
The domain is registered (hopefully to you), but it's not hosted here (yet). If you see it under the manage domains part of the panel, then that part's done. You just need to change the nameservers.
It's okay that it's not registered here, as long as you update the nameservers. You can also transfer the registration here as well, if you'd like to use your free domain credit for it... but it's not required.
Currently, the nameservers are set to:
You'll just need to log into the registrar's control panel and set those to:
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