I just tried this and got the same error:

Fatal error: getauthconnection(): Failed opening required '/home/stonerock/public_html/home/class/auth/auth_nl2br.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/stonerock/public_html/home/class/auth/authfactory.php on line 33
Warning [PHP]: getauthconnection(/home/stonerock/public_html/home/class/auth/auth_nl2br.php): failed to open stream: No such file or directory in file class/auth/authfactory.php line 33

I have tried 3 times to install it and I get this error everytime.

Help Please