Domain won't go to Subdomain

So I installed Domain mapping because I am implementing Multi-site (which I had to implement sub-domain style). I directed http://www.podcastmadness.com to the host IP and set it up to redirect to podmad.geekazine.com.

Podcastmadness ends up going to the root directory (www.geekazine.com).

Need help and if I didn't set up correctly. I am on a Godaddy server.