Your code works great in IE, and I now can see the player in Firefox. But, when Firefox attempts to open the file a Media Player dialog pops up with this error "The file you are attempting to play has an extension that does not match the file format. Playing the file may result in unexpected behavior". Then the file cant be played.
I'm trying to stream a .wmv file, and I'm wondering if a different file format is better.
P.S. Sorry for being such a noob.