Hi,
i am not sure what you try to do.
according to the wikithing:

"Domain parking is the registration of an Internet domain name without using it for services such as e-mail or a website."

so that means you would NOT USE it.

I guess you want to activate or enable your domain?

currently there is no site visible when you usehttp://www.denise-carson.com and i guess it has to behttp://denisecarson.com/ which shows us:

"Warning! Domain mapping upgrade for this domain not found. Please login and go to the Domains Upgrades page of your blog to use this domain"

maybe this article will help you?
http://help.godaddy.com/article/5112...

its about using domain mappin

if you give some more information i think you will also get more info.