First, to be able to see the sessions and customize the splash page, you need to upgrade to Basic Plus which enables premium features.
Then you can freely remove the booking banner from the successful login page using the Skin System.
You can export the sessions from the Control Center, using the CSV export from Reports > Session Report.
About the google redirect, i guess the problem here is that google is now using https and pages starting with https cannot be redirected. You can read more: http://help.hotspotsystem.com/knowledgebase/websites-starting-with-https-are-not-forwarded-to-the-splash-page