I need to replace my pwr seat switch in my 2003 lincoln town car

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

there is two screws in pull handel there is two screw at bottom of door panel in the carpet the rest are plastic clips .