The FTP Chapter is broken into 3 sections after the introduction chapter.
***** I strongly encourage you to read about my suggestions for web hosts where you can upload your finished site.
Once you have installed your FTP software, and you start it, you may be prompted with a server profile screen. In FileZilla, click FILE -> Site Manager from the Menu to bring up this window. This window has areas ('fields') to type your remote host address/name, your username and password, and there is an area to enter your remote folder or directory.
Type in your host's name and your username. You can include your password now, or leave it blank. Leaving it blank will require you to type it every time you connect with FTP, and will prevent someone else with access to the computer you use from changing your web site.
If your host's documentation specifies a remote folder or directory (also called a 'path') enter the name in the box on the "ADVANCED" tab. Otherwise, leave that area blank.
Now, you can choose connect to log on. (If you are unable to connect after following these directions, I suggest that you read the FTP FAQ/help section of your host's web site, which may help you figure out the problem.)
If all your setting are correct, the left-side panel (in FileZilla, in other programs it probably says local host somewhere) shows files on your own computer.
The files in the right-side panel (in FileZilla, in other programs it probably says remote host somewhere) are the files that are on your server (there may be no files in this folder, or a single temporary index.html, if you've never logged on before with FTP).
You may need to navigate in the local host window to get to the folder where you've placed your HTML files on your computer. You may see two periods ('..'). If you click that, it will take you one level back in your directory tree. (Example: If you are in /Docs and you've placed your HTML files in /WebPage, one click on '..' will take you from /Docs to /, and then you will see a folder called /WebPage [you may have to scroll down]. You can then click WebPage, and you'll be in the right folder.)
Once you have the correct folder loaded on the local host side, and the correct folder loaded on the remote host side, you can begin to upload (and download) files.