for the form address, try using:
<?php echo(isset($_POST['LEDContactEmail'])?$_POST['LEDContactEmail']:""); ?>
for the time zone, add this at line 1 of the confirm page:
<?php date_default_timezone_set('Europe/London'); ?>
The list of valid timezones is here...
http://www.php.net/manual/en/timezones.php
for the date display:
edit the email template file. the code generates the date will look like this:
<?php echo date("n-j-Y", $now); ?>
you change the formatting characters:
"n-j-Y"
to the format you would like to use, see the php date manual for more details:
http://php.net/manual/en/function.date.php
This tutorial:
http://www.webassist.com/tutorials/Customize-form-elements-in-your-form-generated-emails
has details on customizing the email to suppress certain elements lie the submit button and customizing the email