Plufin not working?

Thanks a lot for the help!

Finally, I did it by myself!
I found that jquery is older version (1.3.2) and updated it – i just changed the jquery version 1.3.2 in function.php with 1.10.2:

// Replace WP local jQuery with Google latest jQuery
function tz_google_jquery() {
if (!is_admin()) {
// comment out the next two lines to load the local copy of jQuery
wp_deregister_script(‘jquery’);
wp_register_script(‘jquery’, ‘http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js’, false, ‘1.10.2’);
wp_enqueue_script(‘jquery’);
}
}
add_action(‘init’, ‘tz_google_jquery’);

And it works now.