Then whatever method you're using must not be tied to an official dev account. Honestly it's not worth the risk IMHO. iOS 7 is a huge release, so there's a decent chance Apple could crack down similar to how they did on iOS 5. In which case, if you're not using your own officially registered dev account (i.e. piggy-backing off of someone else's), as has already been stated, Apple can shut it down as they see fit.
As has been stated more than once we don't help or discuss with downloading IOS 7 unless you have a developer account,with that i will close this thread.