Okay - I changed the CategoryID's in mySQL, so if I can get them to display in ascending order, it would be great.
I'm assuming that this bit from menu.php is what needs to be changed?
<li class="parent"><span><a href="<?php echo($assumedRoot); ?>Products_Results.php">Products</a></span>
<?php
mysql_select_db($database_localhost, $localhost);
$query_menuwriter_productcategories = "SELECT CategoryName, CategoryID FROM productcategories";
$menuwriter_productcategories = mysql_query($query_menuwriter_productcategories, $localhost) or die(mysql_error());
$row_menuwriter_productcategories = mysql_fetch_assoc($menuwriter_productcategories);
$totalRows_menuwriter_productcategories = mysql_num_rows($menuwriter_productcategories);
?>
Thank you for our help.