Ok first Highlight the (or all of) the sideshows you want to get money off of. Make the "Chance od Winning" Zero %. Make the winnings Amount $1000 and make the pay price 75$ Thus making it imposible to win. Also when the little black guy comes up and say "PSST Hey people think your ticket price is a steal" Raise the entrance ticket any where from $5-$20!
PS. I have tried all other cheats from other websites and friends. None of them work. I don't think there are any real cheats to this game though.