[Vince]

Why are you still running a 0.3c server? That version was released literally five years ago. An anti-money cheat system is the second easiest system to create, after an anti-jetpack system. It simply relies on the fact that the player's money is stored in a variable that the server controls rather than in a variable that the client controls. SetPlayerMoney should only be used as a visual update towards the client and GetPlayerMoney should never be used directly unless to detect the actual cheating itself (if GetPlayerMoney > PlayerVar[Money] then cheating) and anything that relies on money should use the internal variable.