
LEDMan,
I guess nobody has had the heart to break it to you that you'll need to find another P4 compatible module.
That means either robbing a module from a working P4 (not easy or inexpensive to find) or getting a modern rebuilt StrikesAndSpares module. StrikesAndSpares (Hanno) rebuilds modules using a modern microcontroller and the display and carrier from your original module. You're looking at at least 119 Euros:
http://www.strikesandspares.de/com/modpulsar.htm
If you wanted to find a cheap (about $50) solution, it's possible that you might be able to get a Sanyo module from a more common and less expensive design such as the CompuChron and hot-wire this up to the buttons with a couple of reed switches. It's kludgy, but it would at least preserve the correct display since these Sanyo displays are rather nice:
http://www.crazywatches.pl/chronosonic- ... o-led-1975
-abe.