Thanks Scott for the info that it is optional to set an e.p.r date for time evaluation. However, one qstn still lasts- how far back the system will run a recalculation if there is change in time data for a date earlier than the recalculation date of payroll (in your case- 1/1/2009). How will it be addressed in payroll.
Also pls get back to us if are able to find the reason why the e.p.r date was not set in your implementation. It will be worth a read..
Neetu.