Where are the headlight adjustment screws on a 2000 Celica gt?

Well, as far as I remember, the adjustment screws are where they always are on a Celica, which is next to the light itself on the top and the side of each light. You may not be able to easily see them for the trim around the light. they are often lead colored. The single side screw and single top screw have a spring loaded mechanism which maintains the pressure when you screw them in or out on a pivot (like opening or closing a door)to adjust the angle, which is up/down or left/right. Just remember to be cool and adjust the lights (on low-beam) to "level" or lower and do it at night. It helps to park in front of a wall or garage door if your driveway is LEVEL. If you get them too high, it may be illegal in your area (= ticket) or you will constantly suffer people "brighting" you in protest! Hope this helps, Taylor