Hi,
If you go from version 1.3.7 to latest 1.5.4 version found here Netcam Studio 1.5.6 it is a major upgrade with many big changes. The webcam is under the tab Local sources. If it is an usb connected web camera exit ncs x, unplug and plug the camera back in again and start NCS X. Now it should be visible in the tab local sources.
For the settings nothing should have changed. There is a new structure for NCS that might have affected some parameters.
-Henrik