where the pages are stored in the cms directory, the root url you are using is not correct, it should be:
$WAGLOBAL_Root_URL = "http://www.unicoi.tn.us/CMS"
When a php is displaying blank, it means a PHP error has occurred, to see the error to troubleshoot the problem, add the following to line 1 of the pages that are not displaying:
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
once we know the error, we can begin diagnosing the problem.