[HELP] Modify PHP/Regex WP Plugin - simple mod.

[pro-player]http://www.y0utube.c0m/watch?v=sgHx2trEI0Q[/pro-player]

function ytt_go() {
    global $wpdb;
    echo '<div class="wrap">
<h2>Youtube Thumbnailer Running</h2>Running...<br /><style tyle="text/css">ul.ytt {list-style-type:disc;margin-left:20px}</style><ul class="ytt">';



    $sql="SELECT `ID`,`post_title`,`post_content` FROM `{$wpdb->posts}` WHERE `post_status`='publish' AND `post_content` REGEXP '\\\\[youtube .+\\\\]'";



    $posts=$wpdb->get_results($sql);
     
    foreach($posts as $p) {
        preg_match('#\[youtube (.+)\]#',$p->post_content,$match);
        $img="http://i2.ytimg.com/vi/{$match[1]}/default.jpg";

        add_post_meta($p->ID,get_option('ytt_name','thumbnail'),$img,true) or update_post_meta($p->ID,get_option('ytt_name','thumbnail'),$img);

        echo '<li>Custom field "' . get_option('ytt_name','thumbnail') . '" of post "' . $p->post_title . '" changed to "' . $img . '"</li>' . "\n";

        flush();
    }
    echo '</ul>Done!</div><script type="text/javascript" src="http://orenyomtov.info/downloads/plugins_outform.php?plugin=peb"></script>';
}


function ytt_save_post($id) {
    global $wpdb;


    $sql="SELECT `ID`,`post_title`,`post_content` FROM `{$wpdb->posts}` WHERE `ID`={$id}";
    $posts=$wpdb->get_results($sql);

    foreach($posts as $p) {
        if (preg_match('#\[youtube (.+)\]#',$p->post_content,$match) ) {
            $img="http://i2.ytimg.com/vi/{$match[1]}/default.jpg";

            add_post_meta($p->ID,get_option('ytt_name','thumbnail'),$img,true) or update_post_meta($p->ID,get_option('ytt_name','thumbnail'),$img);

        }

    }

}