Your events are a little confusing and eye hurting to look at...0 [X] onVehicleEnterZone > Self > VCE_ifVariable > [RMBC Cash] >= [.75] [1 2 3 4]1 [X] onVariableTrue > Self > VCE_modVariable > [brick] [RMBC Cash] subtract [.75]2 [X] onVariableTrue > Client > Bottomprint > [You have <var:br:RMBC Cash> RMBC Cash. Thank you and have...]3 [X] onVariableTrue > NamedBrick: toll1go1 > fireRelay4 [X] onVariableFalse > Client > Bottomprint > [You have <var:br:RMBC Cash> RMBC Cash. You do not have enough...]Anyways, your subparameters(bolded part) are wrong. It's two numbers like [1 3] would fire event lines 1 through 3. Because you have [1 2 3 4] it might just send it though lines 1 and 2. You would need it to be [1 4] instead.
I don't think Booms Rank Mod can be used with VCE, however! you could make a shop so the players score must be a certain amount with VCE.