paul, I Made the edits to the date format as i had suggested you do in my previous reply.
I Changed the following line 9it is there twice, one for each of the date pickers):
so that the format is now shown using dd/mm/yyyy
i also added the suggested code at line 3:
<?php if(isset($_POST['Date'])) $_POST['Date'] = date("Y-m-d", strtotime($_POST['Date'])) ?>
<?php if(isset($_POST['End_Date'])) $_POST['End_Date'] = date("Y-m-d", strtotime($_POST['End_Date'])) ?>
to reformat the date being submitted to the database.
the problem with the email not sending was that you had the insert behavior set to redirect to the thank you page, i removed that redirect form the insert behavior and added it to the UE behavior.