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I have successfully linked to my backend.php file on other sites but am having problems getting the backendforums.php to work. The forums will display in a block but the links to the forum postings yield a 404 page.

This is my backendforums.php file:

<?php

/************************************************************************/
/* RSS Feed for PHP-Nuke phpBB2 Forums */
/* =================================== */
/* */
/* Copyright (c) 2003 by Paul Laudanski (Zhen-Xjell) */
/* http://nukecops.com */
/* */
/* This program is free software. You can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License. */
/* See a copy of the GPL licensed attached in the archive. */
/************************************************************************/

include("mainfile.php");

header("Content-Type: text/xml");
$result = sql_query("SELECT t.topic_id, t.topic_title FROM ".$prefix."_bbtopics t, ".$prefix."_bbforums f where t.forum_id=f.forum_id and f.auth_view=0 ORDER BY t.topic_last_post_id DESC LIMIT 10", $dbi);

if (!result) {
echo "An error occured";
} else {
echo "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n\n";
echo "<!DOCTYPE rss PUBLIC \"-//Netscape Communications//DTD RSS 0.91//EN\"\n";
echo " \"http://my.netscape.com/publish/formats/rss-0.91.dtd\">\n\n";
echo "<rss version=\"0.91\">\n\n";
echo "<channel>\n";
echo "<title>".htmlspecialchars($sitename)."- Forums</title>\n";
echo "<link>$nukeurl</link>\n";
echo "<description>".htmlspecialchars($backend_title)."</description>\n";
echo "<language>$backend_language</language>\n\n";
for ($m=0; $m < sql_num_rows($result, $dbi); $m++) {
list($topic_id, $topic_title) = sql_fetch_row($result, $dbi);
echo "<item>\n";
echo "<title>".htmlspecialchars($topic_title)."</title>\n";
echo "<link>$nukeurl/ftopic$topic_id.html</link>\n";
echo "</item>\n\n";
}
echo "</channel>\n";
echo "</rss>";
}

?>

Are you using Google Tap? This is what you have for your links

$nukeurl/ftopic$topic_id.html

Another fix........thanks Teli! Was able to link to backendforums.php successuflly however, when I bring it up on my own site I get this:

The XML page cannot be displayed
Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later.

--------------------------------------------------------------------------------

A semi colon character was expected. Error processing resource 'http://alaskandog.com/ipw-web/portal/cms/backendforums.php'. Line 16, Position 76

<link>http://alaskandog.com/ipw-web/portal/cms/modules.php?name=Forums&file=viewtopic&t=251</link>
---------------------------------------------------------------------------^

Should I be concerned?

What semicolon does it see? I dont see it can you paste where the error is.