window leaks?

I have a 2002 2619 and have two windows leaking from the bottom edges. The rear bedroom just runs down the aluminum. but the dinette area window runs down the wallpaper paneling and caused it to delaminate

I already replaced the leaking roof vent so I'm not too impressed so far. The little drain holes on the outside window frame are clear and there's no water above the window so I don't think its the roof seam?