hjælp til opdatering af kode

HI

nogen der kan hjælpe mig, med at updater nedenstående kode, så den bliver til rss 2.0 og bl.a. virker i IE 7 ?
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<?php


header("Content-Type: text/xml");
require_once "../maincore.php";

$result3=dbquery("SELECT * FROM ".$db_prefix."news ORDER BY news_datestamp DESC LIMIT 0,10");
$result2=dbquery("SELECT siteurl FROM ".$db_prefix."settings");
$base=dbresult($result2,0);

echo "<?xml version=\"1.0\" encoding=\"".$locale['charset']."\"?>\n\n
    <!DOCTYPE rss PUBLIC \"-//Netscape Communications//DTD RSS 0.91//EN\"\n
    \"http://my.netscape.com/publish/formats/rss-0.91.dtd\">\n\n
    <rss version=\"0.91\">\n\n
    <channel>\n
    <title>".$settings['sitename']." - .</title>\n
    <link>".$base."</link>\n
    <description></description>\n";

while ($row=dbarray($result3)) {
    $rsid = intval($row['news_id']);
    $rtitle = $row['news_subject'];
    $description = stripslashes(nl2br($row['news_news']));

// Add allowable HTML tags between quotes below, all others will be stripped
    $description = strip_tags($description, "<A><P><BR><BR /><HR>");

    echo "<item>\n
    <title>".htmlspecialchars($rtitle)."</title>\n
    <link>".$base."news.php?readmore=".$rsid."</link>\n
    <description>".trimlink($description, 400)."</description>\n
    </item>\n\n";
}
echo "</channel>
    </rss>";

?>

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