Shoutbox

Hey guys, I'm still new to actually owning a website, and I need some help with some things.

First of all, any help with registering my FTP (hostgator) to Dreamweaver would be great, but what's really important at the moment is:

-How do I set up my webhost (hostgator) to my registered domain (Netfirm). Not sure how to do this since everytime I go to my site it says Netfirm.

-I also don't know how to set up a main page. I already have the page and all that made, just don't know how to tell HostGator to make it my index. Thanks, as you can tell I'm a newb and I'm just trying something new.