Multisite Domain Mapping

Hello,
I just set up multisite on http://www.hamptonroadsnetwork.com. I am using the subdomain system. This seems to work fine. I tried to configure domain mapping and set up an "a" record at enom my domain registrar to point the name "karisharmony.com" at the new site "map.hamptonroadsnetwork.com" I can't get karisharmony.com to resolve anywhere. Please assist. Thanks