can't see upload

Hello all. I am confused.

I have an ebook website and I see the site fine on the web.
I installed another folder in my root called reviews.
When I enter that url, It says
Directory has no index file. It says to create one so I did and I
still cannot see it on the web.

Also I can't see my images or downloads. Am I supposed
to be able to see these?

The complete site looks and works fine, but I can't see my
reviews. If I want to show someone my reviews, how do I
make this possible?

Thanks for any help anyone can provide