For your new website to be found on the internet you need to contact your Domain registrar and have the DNS information changed; otherwise your site will never be available online.
If you have registered your domain names with us then this has already been done for you.
Name server hostnames and IP addresses can be found under the Name Server heading contained within your web hosting account welcome email.
For other domain registrars please review the links below:
Crazy Domains:
http://www.crazydomains.com.au/help/domain-names/
GoDaddy:
http://support.godaddy.com/help/article/3952/editing-your-registered-nameservershosts
MelbourneIT
http://community.melbourneit.com.au/t5/Domain-Hosting-Knowledge-Base/How-do-I-change-the-nameservers-on-my-domain-redelegate/ta-p/1939
Net Registry
http://www.netregistry.com.au/support/index.php?/article/AA-00262/0/Modifying-domain-name-servers-or-DNS-records.html
