there is no script that will be able to do this, once your computer shuts down suddenly like that it doesn't get time to save your data back to disk . i remember reading somewhere of a resonably cheap extra power supply gadget that will when your computer shuts down will kick in and save anything still in memory but can't remember its name sorry.
maybe the programmers of limeware could look @ something that updates this file every couple of minutes but i'm pretty sure this would bring the cpu cycles up too much