php/apache timeout

Hi, We are using Apache/PHP and using ORACLE as the database. When I submit the page with hugs database when the server side script (PHP) running I am getting an error "Page not found". But on the background it is adding records to the database. Though I modified all the configuration in php.ini file max_script_execution , sesssion_gc_maxsize .....etc and http.conf file TimeOut, KeepAliveTime paramets. How to stop this error?? do I need to sent any other parameters either in php.ini or in http.conf file. Thanx in Advance MrE