Someone else can tell you what those files exactly are, but don’t worry; they’re supposed to be there.
I don’t know if other accounts are different, but I don’t have a sub-directory called resistore.shop. In any case, it’s odd that you don’t have a subdirectory already there called tinyheartsrescue.com. Maybe try again, and I’ll repeat what marsbar said to do:
Create a subdirectory in the same directory that you see Maildir, logs and resistore.shop in. So, you should have logs, Maildir, resistore.shop, and tinyheartsrescue.com as folders.
Click on tinyheartsrescue.com and go into that folder. Upload index.html.
The page should then be viewable, whether you go to http://www.tinyheartsrescue.com/index.html, or http://www.tinyheartsrescue.com/ (without typing the filename).
If that doesn’t work, perhaps the problem is your index.html file, if it’s not in displayable format, as you mentioned. You might want to share the code.