ok, phpBB linkage is definitely enabled in Admin>my store.

here is the code from the configure.php file I have

Code:
  define('DIR_WS_PHPBB', '/home/vstore/public_html/vforum/');

// * DIR_FS_* = Filesystem directories (local/physical)
  //the following path is a COMPLETE path to your Zen Cart files. eg: /var/www/vhost/accountname/public_html/store/
  define('DIR_FS_CATALOG', '/home/vstore/public_html/');
I've also tried just using '/vforum/' too and that doesn't work either.

My store is in the root public_html and my phpBB is in a subdirectory of that called 'vforum'

Thank you!!!