Note that there is a "trick" to using file-event-based scheduling. The event server does not check the date of the file, instead it checks for the file's presence. In order for it to register that a new file has appeared, the previous file must have been deleted AND it has to be gone for at least one polling cycle of the event server, which I believe defaults to 2 minutes.
-Dell
A computer only does what you actually told it to do - not what you thought you told it to do.