So it sounds like what you are calling ourfarmusa.com is your domain that is currently residing at godaddy and you have also added it at dreamhost.
That's fine except at this point all your site traffic from internet will still be directed to godaddy.
There are a number of ways to get around this for site building purposes. One is to use a "dreamhosters.com" subdomain to build the site, another is to force your local computer to use dreamhost's DNS. Both are covered in the 3rd link provided above.