I was able to successfully install the Chatter News Alert application. The setup/configuration procedures, steps 1 and 2 were followed without issue.

The fields were added to the Page Layout "Account" per instructions. 

In attempting to test the app from an Account Page, the App field "Chatter News Alerts Status" which is a listbox with a field option to "sign-up" appears to be inactive (grey out and unable to select). 

I was able to run a successful test on the app apex.

Any suggestions or similar expeirence?

Thanks in advance.

Stuart