CMS Made Simple Forums

I've founded great comments script http://www.gentlesource.com/comment-script/ but when I try to include it in my site I get this error messages:

Warning: ini_set() [function.ini-set]: A session is active. You cannot change the session module's ini settings at this time. in /home/zarabia2/public_html/koment/include/core.inc.php on line 102

Notice: Constant SMARTY_PHP_PASSTHRU already defined in /home/zarabia2/public_html/koment/include/library/Smarty/libs/Smarty.class.php on line 56

Notice: Constant SMARTY_PHP_QUOTE already defined in /home/zarabia2/public_html/koment/include/library/Smarty/libs/Smarty.class.php on line 57

Notice: Constant SMARTY_PHP_REMOVE already defined in /home/zarabia2/public_html/koment/include/library/Smarty/libs/Smarty.class.php on line 58

Notice: Constant SMARTY_PHP_ALLOW already defined in /home/zarabia2/public_html/koment/include/library/Smarty/libs/Smarty.class.php on line 59

Fatal error: Cannot redeclare class Smarty in /home/zarabia2/public_html/koment/include/library/Smarty/libs/Smarty.class.php on line 65



Can somebody help me, please.