Just a quick question, is your /admin/includes/configure.php configured correctly?
There are items similar to below
define('HTTP_CATALOG_SERVER', 'http://www.your.domain.com');
define('HTTPS_CATALOG_SERVER', '');
define('ENABLE_SSL_CATALOG', 'false'); // secure webserver for catalog module
define('DIR_FS_DOCUMENT_ROOT', '/full/path/to/where/they /are/on server/'); // where the pages are located on the server
define('DIR_WS_ADMIN', '/admin/'); // absolute path required
define('DIR_FS_ADMIN', '/full/path/to/where/they /are/on server/admin/'); // absolute pate required
define('DIR_WS_CATALOG', '/'); // absolute path required
define('DIR_FS_CATALOG', '/full/path/to/where/they /are/on server/'); // absolute path required
The full path to where the files are on the server is required especially for easypopulate to work correctly.
Easypopulate did not work on my site until the configure.php in admin includes was correct.