[theksmith]

looks like the function is still the same in vbulletin 4, the following plugin should work in either 3.x or 4.x ...

hook location: "navbits"

PHP Code:

if (in_array(THIS_SCRIPT, array('showthread'))) {
    if ($counter == $lastelement-1) {
        $elementtype = 'lastelement';
        $show['breadcrumb'] = false;
    } else if ($counter == $lastelement) {
        $skip_nav_entry = true;
    }
}