Correction of errors with authorization on the site with Magento

www.embroidnew.com Website
1. Loginization. When registering through social networks, a new window opens and it does not work correctly. After successful authorization, the window remains open. That is, there are two windows on the screen.The user is confused. Closing the first window, you need to actually reboot the main page to see yourself registered.
1a. After authorization in the menu you can see the same both options Sign In and Sign UP.. As if the user is not logged in.