Using this link you can change your own password; just logon with you current credentials and choose the change password option in the menu on the left. In case you forgot your password but entered a valid e-mail address in the past, you can have the current password mailed to you at the logon page. Click here to go to the ftp site directly.
For optimal configuration always use a "Passiv" Connection in your FTP program.
This setting for Internet Explorer can you set on the Internet Options - Advanced Page, the setting itself is called: "Use Passive FTP (for Firewall and DSL Modem Compatibility)" .