If you don't create a details page, they default to themselves...
$WA_redirectURL = nameUpd.php?fieldID=".((isset($_POST["WADAUpdateRecordID"]))?$_POST["WADAUpdateRecordID"]:"") ."".(isset($_GET["pageNum_WADAtablename"])?"&pageNum_WADAtablename=".intval($_GET["pageNum_WADAtablename"]):"") .""
In this instance (when there is no detail page created) they should probably default to the results page instead. Going back to themselves, especially on an insert, is not what one would expect and it looks like the insert failed and simply doesn't show an error. :)