It has been brought to our attention that the iCamView camera profile is no longer working (the last working release if v4.8). We have verified this and have fixed the problem but will not be able to release another update until Apple reopens after the holidays.
For now, you can get video using the 4.9/4.91 release by adding your camera using the JPEG image via URL profile and the following syntax:
Replace all of the words in CAPS with your own values.
Again, we're very sorry and hope to have the fix released as soon as Apple reopens for business in a week or two.