3 quick problems

SO, I've got a misaligned drivers side door, inside the glass is either the wrong glass or out of the tracks and a trunk that I have no key for the lock. Questions are:

1. Where do I start with the alignment of the door? I've never gotten into the adjustment fitting of body parts so this is a bit new.
2. How do I get into the door panel to look at the glass issue?
3. How do I get that lock out of the trunk without destroying it or the sheet metal of the trunk?