How to enable SEF (Search Engine Friendly) URLs in Mambo?You can enable the Search Engine Friendly URLs from the Mambo administrator's panel. Go to Site -> Global Configuration -> SEO. Once you enable this option, you have to rename the htaccess.txt file in your Joomla directory to .htaccess.
Please click here to access our Mambo tutorials and you will find a nice one on how to enable SEF URLs.