Hi There!
You can order cPanel Hosting plan of your choice from our website by choosing the option "I will update my nameservers on an existing domain". Nameservers information will be sent to you via email once your account is setup. Once the new site is up and running, you can update the nameserver entries for the domain name.
Till the time you update the new nameservers and they propagate, you will be able to access your site using a temporary url like
http://serverIPaddress/~username. ServerIPaddress = actual IP address of the server.
You will have to specify the temporary URL at the time of the CMS installation. Once you do that, the URL will be mentioned in the configuration file and all the links will work using the same. Once your domain starts resolving from our server, you will then have to change the temporary URL to your domain name in the CMS configuration file.