Most simply put your GoDaddy account information is not necessarily your FTP login information. In many cases you will not even have to login to GoDaddy to edit your website (depending on your hosting and method). Also note that one GoDaddy account can have many, many hosting and FTP logins. I hope that helps?
...turns out that my two cents is worth less or more depending on the current exchange rate.
roy darling *my posts seem a lot shorter in my head