New to cPanel and need a bit of help.

You might want to look into finding a website that has tutorials for this sort of thing. Managing your website via cPanel makes things easier to do, but you will need to know how to manage your actual website. That's something not supported on these cPanel Support forums.

Under normal circumstances, your website, domain.com, is located here, in cPanel File Manager:
/yourusername/public_html/

If you uploaded an image called, logo.jpg to /yourusername/public_html/logo.jpg

You can open it in your browser by going to domain.com/logo.jpg

 

Well, thats a separate issue from moving/changing the logo on your website.

If the domain is not resolving to your account properly, you'll need to check your DNS settings. Your Hosting Provider has probably provided you with his nameservers to use on the server, those nameservers need to be added to your domain name, at your domain name registrar. (for example GoDaddy is a domain registrar)

Since you're new and unsure about this, your Hosting Provider would be the one to speak with. He can, he should, be able to explain how to point your domain, to his server, using his nameservers.

As for learning how to work with your website, without knowing how the website was made, any suggestions anyone makes on where to go for support, would be of no value to you. For example if you're running a Wordpress site and wanted to change the logo in the style, that task is a bit different than if you had a plain, 3 page HTML website.

 

Good luck with this and your new site.