Its fine
The application works. You simply have to lookup/know the IP addresses on your network for each of the cameras. The same IP address you would use in your browser to access the camera directly is the ip you enter into the setup fields. Similarly, if there was an passwords setup, these need to be entered in as well.
All this software does is give you a video feed to each camera. Nothing more. What it does - it does fine.
Wish there was more functionality, however.
jordbarnet about
D-Link++ Viewer