a domain name makes it easy for folks to remember you adress thats all. The domain name after you get it will need to be pointed to your ip address. if its a static address you can do this threw internic, networksoultions or whomever you registered the domain name with. if you have a dynamic address you need to use a subdomain naming service. i use dynip in canada but im sure youd preferr one in oz. with the normal fee you use a name like Trust_Not.dynip.com but for a bit more you can use a registered name like Trust_Not.com.

hope that helped