2) Open the "html" folder. (see the picture below)
3) Upload all files to the root of your web-site (this is where you should locate the index.html file). This directory is named public_html or WWW). You should to do that using an FTP application, such as CuteFTP.
Please note: we only ask you to upload the contents of the HTML directory we sent to you, you do not need to upload the whole HTML directory only the contents of HTMl directory, which sometimes includes also the "inc" and "images" directory.