Do the Tutorial. Do it slowly. No, it's not what you want to do, but it does show you how to do roughly what you want -> http://www.creationkit.com/Bethesda_Tutorial_Story_Manager
Random Thoughts
See above, do the Tutorial
Other Random Thoughts ...
Is the "SM Event Node" you are using one of the Default ones that shipped with the game?
Is the Node you are using Stacked Node or a Random Node?
(If it is Random, then your Quest may not start, if it shares the Node with other quests, because the Engine picks one Quest to start ... at Random, from the list)
You are adding a "New Quest Node" to the "Stacked Branch Node: Quest Node" stack, aren't you? (And the Adding your Quest to that new Node?)
(If you are not, then the problem might be that the Branch you have added your quest to has conditions which are not being met, which means no quests in that stack will be selected)
Have you added any Start Conditions to the Quest Node (or Quest) you have added?
I read the CK tutorials before I do anything.
In any case, as it turns out it was throwing a few errors, which I have now fixed. Unfortunately my quest still doesn't start, but that seems to have something more to do with my quest than with the SM. I have a new thread about it if you're interested.
EDIT: Oh, and yes it is one of the default SM Event Nodes. It is Increase Level.