How can I move the login box to the header

hello,
I am using this with phpbb and using it for just google and Facebook, and its taking lots of space on top of the forums, how can I move it to the sidebar or to the header in a smaller box?

    Welcome!

    Please sign in to your OneAll account to ask a new question or to contribute to the discussions.

    Please click on the link below to connect to the forum with your OneAll account.