1) Test drive started with a splash screen (Login to Olin Systems).
Error message returned after I attempted a login with nidb credentials and my unix credentials:
Fatal error: Call to undefined function posix_getpwnam() in /var/www/html/login.php on line 197

I'll try re-running the nidb install script and let you know the result.

Many Thanks for your efforts to help with RHEL6 install!

Jenifer