The parameters of predefined sites should be correct. This is the site's actual FTP address. Note the difference in suffixes. But remember that you'll need an approved user ID or username if you're connecting to a private FTP site. At an anonymous site, custom demands that you use your e-mail address as your password.
Private sites require a real, approved password.
Passive Mode FTP sites usually establish the connection to your computer. You should use passive mode for most transfers. Passive mode may be required for users who are behind some types of corporate firewalls. Some FTP clients let you choose a particular connection port. Normally this is port 21, but a different port may be required if you are going through a firewall or if the site administrator has assigned the FTP protocol to another port.