When you open WS_FTP after installing it, you will be presented with a box that allows you to enter the details of the site that you wish to connect to.
It should be filled in with details as below:
The Profile Name box simply a title for the connection that you are creating - it can be anything that you like.
The User ID should be the same as your login name, and the password is the same as your usual Free Online password.
The rest of these fields can be left blank, although if you wish to add a comment about the connection you Comment box.