Thanks for this information. I have a page open to my FTP directory and I previously tried to create a new folder with the name "oakbrushdigital.com". This was not allowed and an error message was returned.
I had figured that the file tree was the problem, and so hoped that I could create a directory (folder) and move all the uploaded files into it, but when I attempt this (I am logged in and have originally accessed this page from the Control Panel edit option) the action is refused with this message:
FTP Folder Error
An error occurred renaming the file or folder on the FTP Server. Make sure you have permission to make this modification.
350 File or directory exists, ready for destination name.
550 rename: Device or resource busy
As I was attempting to rename the NewFolder folder 550 must be the error - how is the device or resource busy?