Strange install error....

[ceres]

So i have two sites on my webserver and i successfully installed osCommerce Loaded 5 on site A. Now i try to go and install osCommerce with a different database on site B and i try to go the site and i get a blank page. My error log says the following:

[error] PHP Fatal error: main() [function.main]: Failed opening required 'DIR_WS_FUNCTIONSdatabase.php' (include_path='.:/www/siteB/inc') in /www/siteB/catalog/admin/includes/application_top.php on line 158

I have tried a number of different things including doing a copy and paste from site A of that installation and just modifying the configure.php files to no avail.

Anyone have any idea as to what i might be doing wrong?

Thanks,

Ceres