-<form accept-charset="utf-8" action="{?URL?}/install.php?page=5" method="post" target="_self">
+<form accept-charset="utf-8" action="{%url=install.php?page=5%}" method="post" target="_self">
<table border="0" cellspacing="0" cellpadding="0" class="install_table">
<tr>
<td colspan="2" align="center">