1. Install Apache and Interbase RPMs from install_wires
   (Better install running system first)
2. Run ./Install_script
3. Add this to httpd.conf

  AddType application/x-httpd-php .php
  AddType application/x-httpd-php-source .phps

  LoadModule php_module    lib/apache/libphp4.so

4. Restart Apache

Now you should have Apache+SSL+PHP+Mysql+Interbase+Oracle and
CGI version of PHP