By default, all your files on DriveHQ.com are private and secure, i.e. they cannot be accessed with any static URLs. You must logon to access your files. You must publish a folder for your files to be accessible with static URLs.
To publish a folder, you can use Internet Explorer or better use DriveHQ FileManager 3.5 client. Just select a folder and click on Publish in the toolbar. You should see the Publish Link once a folder is published.
BTW, please post the message in Customer Support forum.