If you have already registered you domain through EMW Domains, then it is most likely configured and ready to go. If however you have registered a domain name through a different registrar, then you will need to change the nameservers to point to EMW.

Go to the website of your domain registrar. Find the members area or domain management domain. (you would of recieved this link upon registration.

Once you have logged on, look for a link to change your nameservers.

Delete the current nameservers, and add the following as the two primary nameservers:

ns1.emw.net.au
ns2.emw.net.au

This is a basic run through of what you will need to do, but for more exact instructions, see your domain registrar for details.