So I downloaded and installed Courier thru repository. Everything seems installed fine. No error and it's in trial mode.

Right click 'Locations' and there is no create location option. Click on 'Locations' folder and it only shows "http://" right under. If I click on that, I'll get exception error: "The remote name could not be resolved: 'umbraco'"

How can I create a connection to another local instance to try out Courier?

Here is more error details. And from the details, it looks like it's trying to access the path "c:\Program Files (x86)\teamcity\buildAgent\work\" But my Umbraco is installed on WIn2003 x86, so there is only one "Program Files" folder.

System.Net.WebException: The remote name could not be resolved: 'umbraco'
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Umbraco.Courier.RepositoryProviders.WebServiceProvider.RepositoryWebservice.GetAvailableRevisions(String username, String password) in c:\Program Files (x86)\teamcity\buildAgent\work\d94035a1177dda67\Umbraco.Courier.RepositoryProviders\WebserviceProvider\webservice.cs:line 700
at Umbraco.Courier.RepositoryProviders.CourierWebserviceRepositoryProvider.GetAvailableRevisions() in c:\Program Files (x86)\teamcity\buildAgent\work\d94035a1177dda67\Umbraco.Courier.RepositoryProviders\WebserviceProvider\CourierWebserviceRepositoryProvider.cs:line 106
at Umbraco.Courier.Core.RepositoryProvider.GetAvailableRevisions(String folder)
at Umbraco.Courier.UI.Pages.editRepository.OnInit(EventArgs e)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)