I answered Pixiefingers question in the main thread for Time Manager, but I will post the answer here too, in case someone else is wondering:
Call on the "GetTimeValue" expression, this expression will give you the current value of the counter (in milliseconds). With this value, you can check if its below a given value, in your example, 5 seconds would be 5000 (5 seconds al� 1000 milliseconds). And if the "GetTimeValue" expression is smaller than that, then add 500 to score.