I can't find my home page - please help


I am fairly new to all of this. I am trying to create a website, and just to start myself off I have used a website generator to create and upload the first page in my site. My intention is to then replace this file (index.html) with the actual page I have created to be my home page.

Now, if i go onto mydomain/index.html, the page created by the web generator appears, but I can not find this page in Smart Ftp. I was fully expecting to find it in the public_html direcotry, but it doesn't appear to be there. What am I doing wrong?

Please help,