Create A Forum - Support Forums

i tried to change the url from this http://autismandaspergersinthefa.createaforum.com/index.php
to this aisforautism.createaforum.com/index.php
go daddy are saying this
Shell,
I checked in the createaforum.com support center and they say that changing a URL isn't an available option. You may want to check with them to see if they have any additional suggestions. The only thing I could find them suggesting is to use a custom domain. Please reach out to them directly as this is the forum is there product. Here's a link to the right place to make the request: http://support.createaforum.com/so what am i to do about chaing the web address to a is for autism

would the forum stay the same members,posts etc
how do i do that which package do i need i dont know anything about domains or ip adressess,i am not very good with websites.

ok so in the domain manager i create an account with go daddy then find a is for autism how do i make it so it opens my create a forum,forum.and what is the name servers 1 and 2 and ip address

does it have to be go daddy or can it be another host

hi
thank you

i have purchased a domain now what do i do