How to FTP?

[#1]

220-PLEASE NOTE: If you have a non-subscription account you 
220-will only be able to login to this ftp server if you are 
220-dialled into our network. 
220-PLEASE NOTE: If you have a non-subscription account you 
220-PLEASE NOTE: If you have a non-subscription account you 
PASS ********** 
530 Login incorrect. 
Is what I get when using CORE FTP and ftp://www.username@ftp.plus.net and the PlusNet password.
Do I actually have to dial in?  Why am I paying for broadband?  OR, what am I doing wrong in trying to get to my webspace

[#2]

First, broadband is a subscription account because you pay for it. The non-subscription accounts are the free dialup accounts.
The FTP host is ftp.plus.net not ftp://www.username@ftp.plus.net. I think you are confusing using internet explorer where you would use ftp://username:password@ftp.plus.net

[#3]

The link I use on fireftp is ftp://username@ftp.plus.net