Dan,
Welcome aboard. I'm not sure which URL you used to get the board. If you try
http://www.interceptradio.com and click on the Intercept graphic, you'll see all the choices. It may be that the URL you're using took you directly to the board, thus bypassing the frequencies page. I don't know that we have on this board some kind of automatic notification when new frequencies are added to the database, but Rich, who runs it, usually will post a new message that something significant has been added to the frequencies area.
Dennis E (former AP reporter)