Your Active Directory password needs to be encrypted through the FOG Crypt download from the client page. This, most likely, is the issue you’re seeing where it can’t join to domain.
The 10.10.1.50 fog user and password need to work as well to be able to see the size information. This node also needs to have the Config.class.php file updated to point at your main fog server’s IP/Database and fogstorage username and password to connect and read its information.
The FTP to the 10.10.1.50 is likely incorrect at the moment which would be why you’re not getting any information on the images page.