Actually, guys, the 'wxnwsradar.php' script is officially dead, thanks to the idiots at NOAA/NWS.
I've eliminated it from my menu system.
The USA-regional-maps-inc.php script selects the only, and unfortunately barebones, radar that is currently available for your WFO. It's ugly and dysfunctional for my WFO, so I've just used a webcam image in its stead.
I'm not sure why the appropriate animated GIF isn't showing up in your index.php, Ed. After Ken has had his much needed rest, he'll address this issue I'm sure.