When you add a domain to cPanel, you have two options. Parked or addon.
• A parked domain will show the exact same site as your main domain. It loads the files from the public_html folder. However, the email accounts are separate from your main domain unless you added the email account as a wild card email.
• A addon domain allows you to run a separate site. It loads the files from a folder in the public_html folder that you specify.
Or else you can change your domain from the account panel
http://x10hosting.com/control
Besure to have the nameservers set for x10
The Nameservers are:
ns1.x10hosting.com
ns2.x10hosting.com
If you need the A record for your server let me know.