ADOdb come usarlo?

[francy2]

ho uno script che usa la libreria ADOdb.
ho un problema.
mi ripete una query infinitamente.
come posso risolvere???
ecco il codice
PS: la query è la seconda

<?php
class Index extends config
{
    var $smarty;
    var $cache;
    var $db;
    var $l;
    var $paginazione;
    /** 
    *
    * @package fms
    * @version $Id: index.php,v 0.01 beta 2006/06/11 18:13:49 acydburn Exp $
    * @copyright (c) francesco straffi
    * @license [url]http://opensource.org/licenses/gpl-license.php[/url] GNU Public License 
    *
    */
    function getmicrotime(){
       list($usec, $sec) = explode(" ",microtime());
       return ((float)$usec +  substr((float)$sec,0,1));
    } 
    
    function Index()
    {
        $this->path();
        $inizio=$this->getmicrotime();
        
        include_once($this->sitedir . '/includes/php/libs/Smarty.class.php');
        include_once($this->sitedir . '/includes/php/cache/acm_file.php');
        include_once($this->sitedir . '/includes/php/Db/adodb.inc.php');
        include_once($this->sitedir . '/includes/php/Db/adodb-exceptions.inc.php');
        
        $this->cache = new acm($this->sitedir);
        $this->smarty = new Smarty();
        //mi connetto
        try{
            $this->db = NewADOConnection('mysql');
            $this->db->Connect($this->host, $this->user, $this->pass, $this->dbname);
        } catch(Exception $e){
            echo "Connect Failed";
            adodb_pr($e);
            die();
        }
        $this->db->debug=1;
        
        $this->smarty->template_dir     = $this->sitedir.'/Theme/'.'classic';
        $this->smarty->compile_dir      = $this->sitedir.'/cache';
        $this->smarty->config_dir       = $this->sitedir.'/Theme/'.'classic'.'/config';
        $this->smarty->compile_check    = true;
        $this->smarty->debugging        = false;
                
        if(($menucache[0] = $this->cache->get('_menu')) == false)
        {
            $sql = "SELECT id, url, nome, visible
                FROM ".$this->prefix."page
                ORDER BY id    ASC
                LIMIT 0,10
                ";
            $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
            $result = $this->db->GetAssoc($sql);
            
            $i = 0;
            
            foreach($result as $key => $menu)
            {
                if($menu['visible'] == 1)
                {
                    if(preg_match('/http:\/\/(.*?)/is', $menu['url']))
                    {
                        $men[$i++] = $menu;
                    } else {
                        $men[$i++]          = $menu;
                        $men[$i - 1]['int'] = true;
                    }
                }
            }
            
            $this->cache->put('_menu', $men, 3600);
        }
        
        $menu = $menucache[0] == false ? $men : $menucache[0];

        $p = $_GET['page'];
        
        if(!file_exists($this->sitedir.'/page/'.$p.'.php'))
        {
            $p = 'error';
        }
               //query danneggiata, che si ripete fino a bloccare il server.
//
//
//
//
//
        $sql = "SELECT u.id, u.urlo, u.user_id, u.time, p.username, p.user_id
            FROM ".$this->prefix.'shout u,
            phpbb_users p
            WHERE u.user_id = p.user_id
            ORDER BY time DESC';
        $shout = $this->db->GetOne($sql);

        include_once($this->sitedir.'/page/'.$p.'.php');
        $class='page_'.$p;
        
        $var['basedir'] = $this->sitedir;
        $var['title'] = $this->title;
        $var['forumurl'] = $this->forumurl;
        $var['siteurl'] = $this->siteurl;
        $var['p'] = $p;
        $var['shout'] = $shout;
        $var['menu'] = $menu;
        $var['tquery'] = '5';
        $var['gzip'] = $this->gzip;
        
        foreach($var as $name => $value){
            $this->smarty->assign($name, $value);
        }

        $page=new $class();
        $page->page();
        
        $page = $this->smarty->fetch('header.tpl');
        $pg = $this->smarty->fetch('page/'.$_GET['page'].'.tpl');
        $smarty->assign('page',$pg);
        $page .= $this->smarty->fetch('index.body.tpl');
        
        $fine=$this->getmicrotime();
        $time = ($fine - $inizio);
        
        $this->smarty->assign('time',round($time,3));
        
        $page .= $this->smarty->fetch('footer.tpl');
        echo $page;
    }
}
?>