Do you want ideas or modules? I can give you a few ideas but you will really have to figure out what she wants to play first and then build the campaign around that, unless she plays a very generalist class like the factotum or binder. You should probably have a few social skill and roleplaying challenges to start out. Then a few instances of combat, then infiltration or dungeon crawling and finally resolution and treasure. This sounds like trying to deal with a local group of thugs in a medium to small village, you learn about them bothering the townsfolk and a small group of them ambush you, you defeat them and then go to their base which is a large house on the edge of town and you find a way to get rid of them.
I would recommend trying to get her to play a class that is fairly self sufficient and easy to run like the ToB classes, factotum, dragonfire adept or warlock.
