Stream works fine on local subnet but not over web

I am very new to FMS so excuse me if I get terminology messed up.

I followed Tom Green's tutorials and at this point I can publish a live stream which I can view and interact with just fine on my local LAN.

The FMS is NAT'ed to the outside world and I have ports 80 & 1935 open to the server.

When I use a browser from the outside world and put in the servers public address I can see & interact with the FMS start page just fine.  I can use the "interactive" tab and supply my live stream name and view the stream just fine.

However when I try to launch the Flashplayer that I built all I see is the controls with moving stipes,  No video feed above.  I can browse to the flashplayer HTML file on my local LAN and it works fine.  Interestingly enough I cannot open the flashplayer HTML file directly on the server either (but I can open the start page application and interact with it).

This seems like a permissions issue to me... any ideas?

Thanks in advance.

Brian