Cannot get mapper to point to test or beta servers

[RumTumTugger]

I have 3 instances of eq2 mapper on my system so I can point to each of the servers due to a problem yesterday I completely uninstalled and reinstalled eq2 now I can't get the beta or test mapper to point to those servers so I don';t have the maps on those servers like I have always had how do I get eq2 mapper to point there when it won't open when i press open after browsing to those to servers.