方法很简单，到include/arc_archives.class.php文件中，

查找 for($i=1;$i<=$totalPage;$i++)

替换为:
 
$total_list=7; //显示7个，3*2+1=7 
if($nowPage >= $total_list) { 
$i = $nowPage-3; //前后6个，（7-1）/ 2=3 
$total_list = $nowPage+3; //前后3个，（7-1）/ 2=3 
if($total_list >= $totalPage) 
$total_list = $totalPage;  }else{ 
$i=1; 
if($total_list >= $totalPage) 
$total_list = $totalPage;  } 
for($i;$i<=$total_list;$i++)