先打开/phpcms/modules/admin/index.php
搜索：public function public_main() {
在里面加上：

		$this->content_check_db = pc_base::load_model('content_check_model');
		$this->hits_db = pc_base::load_model('hits_model');
		$total_content_check = $this->content_check_db->count(array('status'=>'0'));
		$total_hits = $this->hits_db->count();
		$this->member_db = pc_base::load_model('member_model');
		$total_member = $this->member_db->count();	//会员总数
		$todaytime = strtotime(date('Y-m-d', SYS_TIME));	//今日会员数
		$today_member = $this->member_db->count("`regdate` > '$todaytime'");

然后/phpcms/modules/admin/templates/main.tpl.php 里调用方法：

用户总数：<?php echo $total_member?>
今日注册用户：<?php echo $today_member?>
文章总数：<?php echo $total_hits?>
待审文章总数：<?php echo $total_content_check?>