New Mod Features Not Working

Checking out the Mod Demonstration and trying to implement some of its features into my mod. Unfortunately, some of them just don't show up, others crash the game. Is there something I'm missing?

AddStage();
SetStageMessageIndex(21);
AddObjective("jump");
SetObjTotal(10);
CloseObjective();
	CloseStage();

Make sure you have this line in Meta.ini.

RequiredHack=AdditionalScriptFunctionality

If you have that line and it still doesn't work, would you be able to post the rest of the mission script?

That did it, thanks!