Reprint from Hatchman:
1. Torx bit is a T-30, and as stated above, the drain plug is 15mm. I was able to reach the drain plug with a regular Craftsman 6 point socket and wrench, though it is a little tight.
2. Oil filter, can't miss it, right on the bottom, middle, forward, of the engine. Not a lot of room around it, but able to get the wrench on it. They must have had a 500 pound gorilla tightening oil filters the day this car was made. YMMV.
3. Out of the 8 torx screws, the two longest ones go to the outside. The three in the front and three in the back are shorter. Don't over tighten, they are just held by plastic "nuts" and will strip.
There is a thick metal tab towards the rear which will help support the underbody panel while you're installing it; make sure it's engaged.
Lastly, remember to reset the Oil Life Monitor (procedure found in this forum or in your Owners Manual).