Once you get your "ftp client" then use the information your webhost provided you. This is a list of of the options you'll need when using FTP.
1. Host Name: which is the server name or number your project is published to, it will be something like this ftp.yourdomain.com
2. User ID: which will most likely be your username your using to login to your webhosting account.
3. Password: which is usually the same password you use to login or sometimes it's a seperate password, just depending on your hosting.
4. Directory Path: which is the file path where your files will be uploaded to, it will look something like this /public_html/folder If your not sure what your directory path is please ask your webhosting provider