I have the flu, so my thinking is not so clear and not sure what to do with this problem - probably simple.
I have a sub-site I created http://teef.ruralcharities.org for a group. The group owns a domain @ GoDaddy which is http://teefinc.org. I gave them my server DNS which is Bluehost DNS. They put in the info and now instead of the domain resolving to a GoDaddy page it is now a Bluehost page, so that part is good. I installed your domain map plugin, but I am confused on what next to do.