I have changed all the information in config.php to right, and chmodded the whole dir to 777 (including subdirs), but when I try to go to the www.mydomain.com/nukephp.../index.php I get this error

Warning: main(db/mysql.php): failed to open stream: No such file or directory in /home/bostonarch/public_html/sunflare/db/db.php on line 53

Warning: main(): Failed opening 'db/mysql.php' for inclusion (include_path='.:/usr/lib/php') in /home/bostonarch/public_html/sunflare/db/db.php on line 53

Fatal error: Cannot instantiate non-existent class: sql_db in /home/bostonarch/public_html/sunflare/db/db.php on line 86

whats wrong?