Warning: require(Smarty.class.php) [function.require]: failed to open stream: No such file or directory in /home/adam/htdocs/stealthisidea/www/index.php on line 4

Fatal error: require() [function.require]: Failed opening required 'Smarty.class.php' (include_path='.:/usr/share/php:/usr/share/pear') in /home/adam/htdocs/stealthisidea/www/index.php on line 4