sorry I'm unable to open the fla file, you must be using CS3?
If so perhaps you need to change your publish settings to
AS2, (Flash tab) if you are publishing for Flash8. Otherwise CS3
will publish using AS3, and the scripts will not run. I realize
you've said that you've 'exported' to Flash eight, just making sure
you've change the publish settings, because I'm running 8 and can't
open the doc.