I just installed Zen-cart, changed permissions and 2 filenames as directed and set up the database.

When I run the install script, I get a blank screen and this entry in the error log:

PHP Fatal error: main(): Failed opening required 'includes/templates/template_default/common/html_header.php' (include_path='.:/usr/share/pear') in /var/www/vhosts/domain.com/httpdocs/store/zc_install/index.php on line 27

The "includes/templates/template_default/common/html_header.php" IS there, according to smartFTP, LeapFTP and the server's file manager.

I try to access the "includes/templates/template_default/common/html_header.php" file directly on my browser and I get a 403 message.

The server is running PHP 5.0

I'm at a loss, and open for suggestions.