It hadn't been working for quite some time when I created mine. Flash tends to crash randomly on me which can be an issue. I've had this script running non-stop for up to 2 days without any issues.
@ OP: can you please enable Firefox?
Yes, I've added multiple audio formats. Firefox should now work.
nice!
small suggesion: the gray static background is annoying. makes it look like something from the nineties. can you change to a more gloossy look? or at least use a solid color.
I'm pretty sure in the 90s they went from text on white background to solid color, mostly. Noise textures are common nowadays, although usually not in gray with more details added to the page hiding most of the background. It's usually more elegant with a more complex design.
I've added a gradient to reduce the dullness of the noise texture a bit.