FTP stands for File Transfer Protocol. FTP is used to transfer your files from your local computer to your website hosting space. To use FTP you will need a piece of software called an FTP Client. Many are free to download, eg Filezilla, Smart FTP and BulletProof FTP.
To use FTP you will need the following that can be found in your Control Panel
A web hosting package with FTP access
The FTP host name
Your FTP username
Your FTP password