Hmmm. That's strange. I wonder why it kept bringing you back to a sign up page. It's the exact same blockchain so you shouldn't create a new account. Just use the one you have. It sounds like the Steemit.com interface works so that's good! I mostly use Steemit.com but am finding myself on busy.org when I need to do specific things I can't do on Steemit. Anyways, I see you're new to Steemit. Welcome!