I am doing this on a 2002 regal LS and there is a slight difference. to get the top cover off, you will need a E-5 socket (Female T-30 driver) and there is a bolt just in front of the ignition cylinder that holds on the top cover. You cannot reach the hole to remove the cylinder without removing the top cover first. other than that it is the same directions.
I had a heck of a time trying to find the hole that is on top of the cylindar because the top cover does not move enough to see it.
topher