First of all, log in to cPanel. Then click on 'Parked Domains'. If you can not see 'Parked Domains' that means your hosting account does not allow you to have any domian aliases. Please contact Joomla Wired's Support through the ticketing system and ask them about upgrading your account. Once the Parked Domains page has loaded simply write the domain aliase in the field located under 'Create a New Parked Domain' and click on 'Add Domain!'.

Do not forget to change the domains nameserver settings to point to Joomla Wired. What are the settings? Click here to find out.