creating the delete page page with the new version is the same as in the old version.
the link to your delete page should pass in a querystring variable to tell which record to delete.
on the delete page, you would have a form with a delete button, to make sure the person rely wants to delete the record.
add a hidden form element to the page to capture the ID query string variable:
<input name="id" type="hidden" id="id" value="<?php echo((isset($_GET["id"]))?$_GET["id"]:"") ?>" />
then add the delete record behavior, click the plus button on the server behaviors panel and select WebAssist -> Data Assist -> Delete Single record delete.
for the key column, select the ID column, click the lightning bolt icon next to Key Value and select the ID hidden form element.