File Transfer Protocol
The 'Net offers many ways to transfer information, one 'protocol' is FTP (File Transfer Protocol). FTP allows you to transfer a file, like an HTML document or picture, over the Internet to an FTP server.
To transfer your files to the FTP server you will need an FTP Client. You can go to Downloads for links to FTP Clients. When you start your FTP client you will be able to tell it to go to your server. Once you connect to your server you will be able to upload, download, create folders, and delete files.