How do I customize appearance in Appointment +

Trying to see if this plug in will work for what we need for this page: http://getlevitin.com/free-demo/

1) I want change the wording where it says "Click a free day to apply for an appointment" but don't see where to do that

2) Want to change font size on the hours available on right hand side (after you click a day) It's way too small

3) I want to add our logo to the confirmation email as well as change the formatting of the email.

Thank you