CMS Made Simple Forums

Not real happy with  CMS Made Simple - going back to Joomla.

How do I get CMS Made Simple off my website?
Was installed in root directory

a:) delete all of the files installed by cms
b:) drop the database you created, or if you're using the same database for multiple applications, drop each and every table that starts with the cms_db_prefix from the config file.

Thank you for the help