Default Theme

I purchased the Catch Theme Pro with the hope that i wouldn't have to do much to get it up and running by basically just changing images. The zip file i downloaded on the account page doesn't even have the images shown on https://catchthemes.com/demo/catch-foodmania-pro/. The slider is just blank. All i want to do is basically just use the same demo shown and just change the images. Why don't i have the default demo as shown on the link?