Ok, I uploaded my page but when I tried to enter the url (mjb740.vndv.com) it says "The address you have entered is not open to the public" What did I do wrong?

Ok I just fixed that problem but I have another... I added my own custom domain name. Should it show my page when I type it in? I already redirected the DNS on my domain registar to ns1.whateveritwas.com and ns2.whatever.com

You need to add the domain in the control panel then point the nameservers of your domain to NS1.VNDV.COM & NS2.VNDV.COM

Also, make sure your permissions on the index.html are set to where people can see it.