-<form accept-charset="utf-8" action="{?URL?}/modules.php?module=admin&what=send_newsletter" method="post">
+<form accept-charset="utf-8" action="{%url=modules.php?module=admin&what=send_newsletter%}" method="post">
<table border="0" cellspacing="0" cellpadding="0" class="admin_table dashed" align="center" width="430">
<tr>
<td colspan="5" class="admin_title bottom" align="center" height="30">