Hi Mike,
You can restore a single file from the c2c account directly. The easiest way to do this for just one file would be to logon to the c2c backup account, then download the file locally before re-uploading (overwriting) it within the main account. Then the direct automatic restore feature would be used for folders and foldersets to restore.
Keep us posted with any other questions.
Best,
DriveHQ Support
www.DriveHQ.com