The only thing I can think of is to make doubly sure that your FTP
host name, username and password in the cushy site configuration
screen (Afbleeding 2.png of the screenies you gave) is EXACTLY the
same as what you have in dreamweaver. Just because cushy is correctly
logging in, does not mean it is logging in to the correct place. Note
that in some cases, the username you login to an FTP site with
determines the places you have access to.