How do you create a sub-domain

I'm clueless

If you have cPanel access it's here: http://www.yoursite.com:2082/frontend/x3/subdomain/index.html

If you don't have cPanel access contact your ISP.

What do I put as the Document Root?

After creating the sub domain, where do I redirect it to?

I don't quite understand what you mean by "redirect." You should be able to access the subdomain immediately, and can add files to it through its directory under /public_html/.

Is there something specific you're trying to achieve with a subdomain?

After I created the sub http://www.carribsocial.e3global1.com/ and went to the url this is what I get.

You can add files/another installation, etc. to the subdomain through its directory under /public_html/. Is there something specific you're trying to do?

I wanted this to be a social site for Caribbean People to come

You'll find the subdomain's directory under /public_html/carribsocial.e3global1.com/ (or something like that). If you're wanting to install Dolphin on it, you can upload it there.

I'm currently on 7.0.3 with the main site and to install dolphin in the sub domain would be an higher version of dolphin, will this matter?

I don't see how, since this would be a separate site.

O.K i'm going ahead now and upload it.

I uploaded it and still getting the same message. Once upload, do I extract the files or leave it as is?

You need to extract the files from the ZIP archive, which can be done with cPanel's file manager.

Problem solve!! Thanks all