搞定”文章分类”区块,感谢GNUlife的帮助.代码如下:

if (user_access('access content')) {
    $result = db_query("SELECT d.tid, d.name, MAX(n.created) AS updated,COUNT(*) AS count FROM {term_data} d INNER JOIN {term_node} USING (tid) INNER JOIN {node} n USING (nid) WHERE n.status = 1 GROUP BY d.tid,d.name ORDER BY updated DESC, d.name");
    //读取分类关键词,最新文章创建的时间,降序排列
    $items = array();
    while ($category = db_fetch_object($result)) {
        $items[] = l($category->name .' ('. $category->count .')','taxonomy/term/'. $category->tid);
        //按照以前的格式显示分类区块,包括最后一片帖子的发布时间。
        //.'
        '. t('%time ago', array('%time' => format_interval(time() - $category->updated))));
    }
    return theme('item_list', $items);
}

下一步就是整理分类了…这是个头痛的问题