Hi Ivan, thanks for your help.
The flash files should be the same in both places, but just in case I downloaded the file from Impact and uploaded it to our website.
I copied and pasted your code into our page, and unfortunately the video still does not play in my browser (or on those of the other computers I have checked). That said, the video started playing in the editing window.
The flash file works, and will play on our ftp site; I just can't get it to play on our website
Thanks for any insights you have.