PHP not working - below my settings - please help

We are running win2k server edition with iis (4 i believe) Installed php 4.2.1 Tried to install both the cgi and ISAPI module - could not get either to work I get an ocx error when installing it on the standard option I then gave all folders the iusr security rights, added the .php in the app mappings under the configuration tab and specified to location of the php4isapi.dll as the executable Stopped and restarted iis admin service...php still doesnt work. Typed in php -i under the command promt within the php directory - and php seems to be running Placed the hello.php in my published directory and tried to access it - browser error: --------------------------------- The page cannot be displayed There is a problem with the page you are trying to reach and it cannot be displayed. HTTP 500 - Internal server error Internet Explorer -------------------------------- I dont know what to do anymore - any help will be greatly appreciated... Thanks much! George