Well at a guess you have your sound set to maximum. Looks suspiciously like a one byte integer.
I am pretty sure that none of those have a thing to do with the game rules. Thats the file where you put in things like
refresh=85
Mostly that looks like your preference settings. I think you have two of the city governor setting at never and none are set to often.
No you haven't found what you were looking for. Try the CivIII editor which edits the .bic file. Then hope for the next New Improved Editor. That one may have more.
This lack of flexible editing has been the most legitmate complaint on Apolyton. Most of the rest have been more a matter of taste. The box promised or at least implied a better editor than was delivered.