I know how to make clean url using rewrite engine for http://www.sitename.com/index.php?category=11&subcat=Serverside but if my current site url is generated like this: user.php?id.250 and news.php?id.450 I want to make clean url from content (title in the content) from user.php?id.250 and news.php?id.450 How to do it ?