Can't you just make a shortcut on her pc to an ftp url to let her do this?
She could could just drag n drop the images onto the shortcut to copy them to the server I think.
ftp://cleosservername.com/path/
ftp://user:password@cleosservername.com/path/
should work if you get her to install the ie hack that lets that syntax work again and save her being prompted for a password.. if you want to make it really simple