Computer Learning

[j.c.]

Ken... more info... try the first... check the last link if the first doesn't work:
The 550 error is a message from the server stating that the account you have currently logged in as does not have permission to perform the action you are attempting. You may be trying to upload to the wrong directory or trying to delete a file.
This is because you are publishing to an FTP destination. Change your publish destination from "ftp..." to "http://<domain_name.com>/" where <domain_name.com> is your domain name.

http://www.contactor.se/~dast/stuff/byothers/ftp.txt