change this code:
<a href="<?php if($row_menuwriter_pages['pages_id'] == '1') { echo $row_rsSitewide['site_url']."/"; } else { echo($assumedRoot)."main.php?pages_id=".$row_menuw riter_pages["pages_id"];} ?>"><?php echo $row_menuwriter_pages["pages_name"]; ?></a>
to:
<a href="<?php if($row_menuwriter_pages['pages_id'] == '1') { echo $row_rsSitewide['site_url']."/index.php"; } else { echo($assumedRoot)."main.php?pages_id=".$row_menuw riter_pages["pages_id"];} ?>"><?php echo $row_menuwriter_pages["pages_name"]; ?></a>