You didn't say if you have a four-door or a two-door.  See below for front
door procedure.

Document ID# 798690
2003 Oldsmobile Alero
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Trim Panel Replacement - Side Front Door Oldsmobile
Tools Required
J 38778 Door Trim Pad Clip Remover

Removal Procedure

Remove the front door warning reflector. Refer to Reflector Replacement -
Front Door Warning .
Remove the trim plate insert. Refer to Trim Panel Insert Replacement - Front
Door .
Remove the window regulator handle, if equipped. Refer to Window Regulator
Handle Replacement - Door .
Remove the accessory switch plate from the door trim panel. Refer to Power
Accessory Switch Panel Replacement .
Remove the trim panel screw (1) through the access hole located behind the
warning reflector.
Using J 38778 and starting at the door bottom, disengage the trim panel
retainers.
Lift up on the trim panel to disengage it from the inner belt molding.
Remove the trim panel from the door.
On the driver side disconnect the electrical connector from the rear deck
release switch.
On the driver side remove the rear deck release switch, if required.

Installation Procedure

On the driver side install the rear deck release switch, if required.
On the driver side connect the electrical connector to the rear deck
release.
Position the trim panel on the inner belt molding and press down.
Install the trim panel to the door, pressing into place until the retainers
are engaged.

Notice
Use the correct fastener in the correct location. Replacement fasteners must
be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or
sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces
unless specified. These coatings affect fastener torque and joint clamping
force and may damage the fastener. Use the correct tightening sequence and
specifications when installing fasteners in order to avoid damage to parts
and systems.

Install the trim panel screw (1) through the access hole located behind the
warning reflector. Tighten
Tighten the screw to 3 N·m (27 lb  in).

Install the accessory switch plate to the front door trim panel. Refer to
Power Accessory Switch Panel Replacement .
Install the window regulator handle to the door, if equipped. Refer to
Window Regulator Handle Replacement - Door .
Install the trim plate insert. Refer to Trim Panel Insert Replacement -
Front Door .
Install the warning reflector. Refer to Reflector Replacement - Front Door
Warning .

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Document ID# 798690
2003 Oldsmobile Alero

Thanks so much Silver!  It's a 4 door.  Is the procedure you gave for a 4
door?  Also, is it a must to have the special tools.  I don't want to ruin
it and will get them if need be.  Thanks again

You're a life saver Silver!  Thanks so very much! Wish me luck.