Acabe de provar aquest snippet i funciona a la perfecció a Drupal 6.x:
$vid = 2; // Set the vid to the vocabulary id of the vocabulary you wish to list the terms from
$items = array();
$terms = taxonomy_get_tree($vid);
foreach ( $terms as $term ) {
$count = db_result(db_query("SELECT COUNT(nid) FROM {term_node} WHERE tid = %d", $term->tid));
$items[] = l($term->name, "taxonomy/term/$term->tid") . " ($count)";
}
if ( count($items) ) { print theme('item_list', $items);}
?>