Path constrained characters.

[system]

Hello zombies of the internet, I'm trying to make a game featuring a path constrained character that can jump at the same time. I am trying to get working game similar to this: http://itween.pixelplacement.com/examples.php (It should be the first sample)

I have itween and a know how to make a path but I dont know how to make the character jump.
If anyone could help me on this that would be great.

ps: i cannot buy the example becuase i have no paypal account.

[Jesse_Anders]

I'm not that familiar with iTween, but if I had to guess I'd say that in that example there's a game object with no visuals attached that follows the path, and another game object that's a child of the first object that handles the jumping (where the 'jumping' occurs in local space and is relative to the first object).