SPECIAL>If you use FTP
>Know how to use FTP
>FTP client that support SFTP
The term Secure FTP refers to adding encryption to FTP. There are several different ways of providing secure file transfer protocols and this can make things a little confusing. The two main protocols for Secure FTP transfers are named SFTP (FTP over SSH) and FTPS (FTP over SSL). Both provide secure file transfer and the main difference is how connections are authenticated and managed.
The choice of which to use will often be dictated by the service you are connecting to and what it supports. If you would like a technical explanation of the different Secure FTP protocols See the MORE INFORMATION box below.
Some FTP Servers are not automatically set up to support Secure FTP. On some you may need get SSH/Shell access enabled on your account.
You will need an FTP client that supports Secure FTP.
These pages provide a more technical explanation of secure FTP