Home Page Missing – Client changed static front page

My client changed their websites static front page from a page to a post, I changed it back to a page, but now there is no home page. I searched the deleted pages and .came up blank. I searched for HOME and it came up with a page that she just created and I went through all of it’s revisions but no luck. I did log into the FTP server and I see the index.html and .php, but I don’t know if those will help or what to do with it. For now I set the homepage to be the About Us page. Any ideas on how where to look or what to do next would be greatly appreciated it. Been searching the forums and testing ideas for 3 hours and have come up empty handed. I am installing a backup to this site so this doesn’t happen in the future. Who would have thought people go places you tell them not to! Thanks you!!