Joomla 1.5 PHP Problems

<?php
/**
* Mod FB Latest by MetZ
* The module is released under the GNU.
* Created by http://www.havneliv.no
* Please SUPPORT us if you enjoy this module
* www.webme.no/dl/
* Thanks ;) and Enjoy!
*/
 
// no direct access
defined('_JEXEC') or die('Restricted access');
// Load module parameters
$num_posts = @$params->get( 'num_posts', "" );
$only_categories = @$params->get( 'only_categories', "" );
$child_categories = @$params->get( 'child_categories', "" );
$within_thread = @$params->get( 'within_thread', "" );
$show_public = @$params->get( 'show_public', "" );
$show_registered = @$params->get( 'show_registered', "" );
$show_special = @$params->get( 'show_special', "" );
$max_length = @$params->get( 'max_length', "" );
$date_format = @$params->get( 'date_format', "" );
$name_link = @$params->get( 'name_link', "" );
$written_text = $params->get( 'written_text' );
$by_text = $params->get( 'by_text' );
$module_table_text = @$params->get( 'module_table_text', "" );
$module_background = @$params->get( 'module_background', "" );
$module_text = @$params->get( 'module_text', "" );
$item_format = '<div class="items">
<div class="item_main">%S</div>
<div class="item_info"><img src="modules/mod_fb_latest/tmpl/images/icon_info.gif"> '. $written_text .' %F '. $by_text .' %N, %D</div>
</div>';
 
// Ensure functions are only declared once, so that module can be used as multiple copies
if (!defined( '_FBLATEST_INCLUDED' )) {
	define( '_FBLATEST_INCLUDED', '1' );
 
	function fblatest_main( $num_posts, $only_categories, $child_categories, $within_thread, $show_public, $show_registered, $show_special, $max_length, $item_format, $tooltip_format, $date_format, $name_link, $by_text, $written_text )
	{
		global $database;
 
		// Select the appropriate message board component
			$componentname = 'com_fireboard';
		
		// Get menu item ID of the forum
		$database->setQuery( "SELECT id FROM #__menu WHERE link LIKE '%".$componentname."%'" );
		$rows = $database->loadObjectList();
		$forumitemid = $rows[0]->id;
	
 		// Load posts from database
		$posts = fblatest_loadposts( $num_posts, $only_categories, $child_categories, $within_thread, $show_public, $show_registered, $show_special );
		if ($posts == null) {
			echo "None";
			return;
		}
		
		// Generate formatted items
		$items = array();
		foreach ($posts as $post)
			$items[] = fblatest_makeitem( $post, $componentname, $forumitemid, $max_length, $item_format, $tooltip_format, $date_format, $name_link );
		$content .= '<div class="fb_latest">';
		
		// Generate item layout
				foreach ($items as $item)
					$content .= $item;
		echo $content;
	}
	// Loads the latest posts from the Fireboard database
	//
	function fblatest_loadposts( $num_posts, $only_categories, $child_categories, $within_thread, $show_public, $show_registered, $show_special )
	{
		global $database, $my;
		
		$fbcookie = $_COOKIE['fboard_settings'];		  
		$prevvisit = 0;
		$readtopics = null;
		
		// If a registered user is logged in, look for their last board session
	  if ($my->id != 0) {	  	
		  $database->setQuery( "SELECT * FROM #__fb_sessions WHERE userid = ".$my->id );
	    $sessions = $database->loadObjectList();
			if ($sessions && $sessions[0]->userid) {
				$prevvisit = $sessions[0]->lasttime;
				$readtopics = $sessions[0]->readtopics;                
			}
			else
				$prevvisit = time() - 1314000; // One year ago
				
			// If there is a valid value in the cookie, use it instead
			if ($fbcookie['prevvisit'])
				$prevvisit = $fbcookie['prevvisit'];		
		}
			
		//echo date("d-m-y H:i", $prevvisit)."<br/>";
 
		// Select latest posts / topics from database
		$sqlselect = "SELECT a.id, a.name, a.userid, a.subject, a.catid, a.time AS posttime, c.name AS catname";
		
		// Categorize as unread depending on last visit and list of read topics
		if ($readtopics && $prevvisit)
			$sqlselect .= ", (a.time > $prevvisit AND a.thread NOT IN ($readtopics)) AS unread";
		else if ($prevvisit)
			$sqlselect .= ", (a.time > $prevvisit) AS unread";
		else
			$sqlselect .= ", 0 AS unread";														
 
		if ($within_thread == 0) { // Show all posts from a thread
			$sqlfrom = "FROM  #__fb_messages AS a, #__fb_categories AS c";
			$sqlwhere = "WHERE a.catid = c.id AND c.published = 1 AND a.hold = 0 AND a.moved = 0";			
		}
		else if ($within_thread == 1) { // Show only first post from a thread
			$sqlfrom = "FROM #__fb_categories AS c, #__fb_messages AS a LEFT JOIN #__fb_messages AS b ON a.thread = b.thread AND a.time > b.time";
			$sqlwhere = "WHERE b.id IS NULL AND a.catid = c.id AND a.moved = 0";
		}
		else { // Show only last post from a thread
			$sqlfrom = "FROM #__fb_categories AS c, #__fb_messages AS a LEFT JOIN #__fb_messages AS b ON a.thread = b.thread AND a.time < b.time";
			$sqlwhere = "WHERE b.id IS NULL AND a.catid = c.id AND a.moved = 0";
		}
		
		$sqlorderby = " ORDER BY a.time DESC";				
		$sqllimit = " LIMIT $num_posts";
	
		// Only include posts with specific access levels
		if ($show_public == 0 && $show_registered == 0 && $show_special == 0) { 
			$sqlwhere .= ' AND c.pub_access == 999999';
		}
		else if ($show_public == 1 && $show_registered == 0 && $show_special == 0) {
			$sqlwhere .= ' AND c.pub_access = 0';
		}
		else if ($show_public == 0 && $show_registered == 1 && $show_special == 0) {
			$sqlwhere .= ' AND c.pub_access < 0';
		}
		else if ($show_public == 1 && $show_registered == 1 && $show_special == 0) {
			$sqlwhere .= ' AND c.pub_access <= 0';
		}
		else if ($show_public == 0 && $show_registered == 0 && $show_special == 1) {
			$sqlwhere .= ' AND c.pub_access > 0';
		}	
		else if ($show_public == 1 && $show_registered == 0 && $show_special == 1) {
			$sqlwhere .= ' AND c.pub_access >= 0';
		}
		else if ($show_public == 0 && $show_registered == 1 && $show_special == 1) {
			$sqlwhere .= ' AND c.pub_access != 0';
		}
		
		// Parse category inclusion list
		if ($only_categories) {
			$inc_cats = explode( ',', $only_categories );
			$inc_cats_checked = array();
			foreach ($inc_cats as $inc_cat) {
			  // Is a possible MySQL record ID
				if (ctype_digit( $inc_cat )) 
			    $inc_cats_checked[] = $inc_cat;
				// Special value -1 indicates the active category
				else if ($inc_cat == -1) { 
				  $active_cat = mosGetParam( $_GET, 'catid', 0 );
				  if (!$active_cat)
						// Using Forum jumping puts it in the post vars
						$active_cat = mosGetParam( $_POST, 'catid', 0 );
						 
				  if ($active_cat > 0)
						$inc_cats_checked[] = $active_cat;
				}
			}
			if (count( $inc_cats_checked ) > 0) {
				$only_categories = implode( ',', $inc_cats_checked );
		
				// Limit returned posts to specified categories
				if (!$child_categories)
					$sqlwhere .= ' AND c.id IN ('.$only_categories.')';
				else
					$sqlwhere .= ' AND (c.id IN ('.$only_categories.') OR c.parent IN ('.$only_categories.'))';
			}
		}
	
		$database->setQuery( "$sqlselect $sqlfrom $sqlwhere $sqlorderby $sqllimit" );
		return $database->loadObjectList();
	}
	
	/**
	 * Creates a formatted HTML item in the post list
	 * @param post The post being displayed
	 */
	function fblatest_makeitem( $post, $com_name, $menuitem_id, $max_length, $item_format, $tooltip_format, $date_format, $name_link )
	{	  
		$subject = stripslashes( $post->subject );  
		if (strlen( $subject ) == 0)
			$subject = 'No subject';
		
		if (strlen( $subject ) > $max_length)
			$short_subject = substr( $subject, 0, $max_length - 4 ).'...';
		else
			$short_subject = $subject;
		
		$postname = ($name_link > 0) ? fblatest_makenamelink( $post->userid, $post->name ) : $post->name;
		$postdate = date( $date_format, $post->posttime );
		
		$item_format = str_replace( "%S", fblatest_makesubjectlink( $post, $short_subject, $com_name, $menuitem_id ), $item_format );
		$item_format = str_replace( "%L", fblatest_makesubjectlink( $post, $subject, $com_name, $menuitem_id ), $item_format );			
		$item_format = str_replace( "%N", $postname, $item_format );
		$item_format = str_replace( "%D", $postdate, $item_format );
		$item_format = str_replace( "%F", $post->catname, $item_format );
				
		$tooltip_format = str_replace( "%S", $short_subject, $tooltip_format );	
		$tooltip_format = str_replace( "%L", $subject, $tooltip_format );			
		$tooltip_format = str_replace( "%N", $postname, $tooltip_format );
		$tooltip_format = str_replace( "%D", $postdate, $tooltip_format );
		$tooltip_format = str_replace( "%F", $post->catname, $tooltip_format );
								
		
		return $item_format;
	}
	
	/**
	 * Creates a link to a specific post on the board
	 */
	function fblatest_makesubjectlink( $post, $text, $componentname, $menuitemid )
	{
		$url = 'index.php?option='.$componentname.'&amp;Itemid='.$menuitemid.'&amp;func=view&amp;catid='.$post->catid.'&amp;id='.$post->id;
		if (function_exists( 'sefRelToAbs' ))
		  $url = sefRelToAbs( $url );
		
		// Anchor part of url isn't included until after SEF conversion
		return '<a href="'.$url.'#'.$post->id.'">'.$text.'</a>';
	}
	
	/**
	 * Creates a link to a specific CB user profile
	 */	
	function fblatest_makenamelink( $userid, $name )
	{
		if ($userid > 0) {
		  $url = "index.php?option=com_comprofiler&amp;task=userProfile&amp;user=".$userid;
		  if (function_exists( 'sefRelToAbs' ))
		  	$url = sefRelToAbs( $url );
			return "<a href=\"$url\">$name</a>";
		}
		return $name;}
}
// Run module main method
fblatest_main( $num_posts, $only_categories, $child_categories, $within_thread, $show_public, $show_registered, $show_special, $max_length, $item_format, $tooltip_format, $date_format, $name_link, $by_text, $written_text );
echo "</div>";
?>