RewriteEngine On 
RewriteBase /
RewriteRule ^index.html$ index.php
RewriteRule ^list/(.*).html$ index.php?op=list&pid=$1
RewriteRule ^html/(.*).html$ index.php?op=html&pid=$1
RewriteRule ^tags/(.*)/(.*).html$ index.php?op=tags&pid=$1&uid=$2
RewriteRule ^tags/(.*)/$ index.php?op=tags&pid=$1
<Files .htaccess> 
order allow,deny 
deny from all  
</Files> 
#ErrorDocument 404 /index.html 