PHPWebStat 4.0, Apache 2.2.11.  I have PHPWebStat installed at http://phpwebstat.tealtoes.org, but whenever I go there, or to any ohter page, e.g. http://phpwebstat.tealtoes.org/config/setup.php, all I get back is an empty page.  The only page that gives a result is /sysinfo.php.

A screenshot of /sysinfo.php results is at http://imagebin.ca/view/BUoWOcYc.html.  The red parts are:

* Session support is OFF.
* All of the files in File Check are shown as red, although no explanation is given for that and it's not clear what the problem would be, since the permissions are set correctly.

Can someone advise how to fix this?  Is the session support to blame?  The strange thing about that is that php says session support is enabled:

$ php -i | grep 'Session Support'
Session Support => enabled

but the server uses FCGI, which may be interfering.

Any help would be much appreciated.
Thanks, Andrew.