Have no idea what I am doin?

I am extremely new at this but I am trying to build my site and I have accessed my control panel and I am trying to install Zencart and it says "Directory name," it has a space to type in something but I don't know what this means do I just make up a new directory name or do I have a directory from my web host? Sorry this is probably a really simple question but like I said I have no idea.
It won't let me continue unless I type something in.

Chances are this is being offered via a Fantastico installer or something.

The "directory" it's asking for is likely the name of the folder you want your Zen Cart to appear in.
Example:
http://yoursite.com/DIRECTORY/index.php

If you leave it blank, or just choose / maybe it'll let you install as:

http://yoursite.com/index.php

Yes I am using Fantastico but I don't know where my folders are located? When I type in my domain name it brings me to a page with a few folders, do I just type in my domain name as my folder or do I make up a new one? Hope this makes sense because I am confused.

This is what it says when I access my domain name

Index of/

Parent Directory
Private
cgi-bin
images
postinfo.html

If you told the fantastico installer for ZC to use "store" for the directory, your listing would look like this:

Index of/

Parent Directory
Private
cgi-bin
images
postinfo.html
store




And then for customers to access your Zen Cart you'd have to use:
http://yourdomain.com/store

If fantastico will let you just use / for the directory, then you'll end up with:



Index of/

Parent Directory
Private
cgi-bin
images
postinfo.html
admin
includes
extras
htmlarea
pub
media
cache
index.php

and a few more




and then your customers could just use:
http://yourdomain.com
or
http://yourdomain.com/index.php

Awesome, Thank you Dr Byte I will try that