How to use just <img> tag

Hi i trying to use Piwik with just tag there supposedly support for this for people with javascript disabled, i have no luck either typing in browser url from tag or embeding it in page. Please advice what i do wrong, can i somehow link directly to image? Seems like place where i trying to use tag checks extension of href= so i rather use piwik.php.gif

there is no support for tracking without javascript (yet). see faq #63