Hi Jason,

I would assume that you already have an account with us ok.

All you need to do is update some settings on your domain name and that will then connect your domain into our system. The full tutorial will be on the link below:
http://support.websitebox.com/domain-tutorials/how-to-link-or-route-an-existing-domain-name-to-websitebox

If you have any further question, feel free to email us at support@websitebox.com.

You own your domain name through a registrar)godaddy, 1&1, or similar). Websitebox will give you some addresses that you go into the settings at your registrar, or have them do it, and point your domain name to the websitebox servers.

Here are the server addresses in the link above.
NS1.WEBSITEBOX.COM
NS2.WEBSITEBOX.COM

For you and me, complicated. But truthfully, pretty simple. You redirect, and traffic goes to you.