I usually recommend
cuteftp. Very simple and easy program.
Now do you have your FTP info for your website (should either be a IP address, or name based).
If you have that (along with username/password), you can use IE, by typing it in the address field above; eg:
ftp://ftpserver/url-path
But since you'll probably want to use your username/password:
ftp://user
assword@ftpserver/url-path
Let me know if that works for you.