Hey there, Joe!
I'm going to assume that the real issue here is being able to change the nameservers from Fatcow's administration panel.
Have you tried following these steps already?
- Log into their Domain Central
- Click on your domain, joedelvalle.com
- Scroll down the Details page until you see "Technical Information", and click edit. You should see the Nameserver Change page.
From there you should be able to update your nameservers.
If that's not available to you, you'll need to contact Fatcow directly and ask them for help. I believe this is their contact link.
Let me know if this addresses your issue!
For more help directly at Fatcow's site, you can read this article from their FAQ section.