This is one of the most important things to do - if you do not set this most booking forms will not work. Go to Theme Options > Bookings and add the booking page URL in the Booking Page URL field (this is the page with the [booking_page] shortcode added to it - if you imported the demo website data the page is named "Booking").
Go to Theme Options > Bookings and edit the Email Address field
Go to Theme Options > Bookings and check Do not record bookings into database
Go to Theme Options > Bookings and edit the Minimum stay option
Go to Theme Options > Bookings and edit the Date Format option
Go to Theme Options > Bookings and edit the Weekend Nights option