We recorded a playback of the 10:00 session which you can watch:
To get a feel for how the BBB platform works. In addition, your credentials are the email address you registered with in cvent and the confirmation number of the registration it sent you back. You can use those to log in here:
And practice in a Hackroom (after logging in select Hackrooms from the leftnav and then pick a Hackroom which is empty).