I just want to know if there's anything else missing from the code that was provided in the Security Advisory page.

It gave the following example to put into the httpd.conf file:

php_admin_flag allow_url_fopen off

I did place this in the config file but my Security advisory still says that this file is still not secure...has anyone encountered the same trouble? Is there anything else I need to add aside from the script above?

you didn't read the advisory correctly.

it doesn't say to enter it in httpd.conf you disable it in php.ini

or create an htaccess file (providing you aren't runnin php in cgi mode or phpsuexec)