Thanks webman...saw the code that is supposed to not let you delete the user that you are logged in with...but that didn't factor in the fact that I was logged in on another machine! Since there were no bookings yet, I ended up re-installing and then importing a copy of the database. All good now.
Very impressed with the application so far and hope to have it up and running in test mode soon. In your configuration directions for bulk csv importing of users it shows email address as one of the fields. Does the program email the teacher and/or administrator notification of the booking and if so, how do you manage that aspect?
Thanks,
Dave