Script problem, help

[PutraenusAlivius]

Also, bool abLit is not defined as True or False.

Yes it is - it is a boolean parameter, meaning all he has to do is call
LitHallCandles(true);
or
LitHallCandles(false);
and the function will do the rest. Toward the bottom of the script, in OnEnter, he does that (under //Init stuff)

SetLampLit("candle_floor_*", abLit, false);

Is it a boolean? Or a string?