Now close your hatch and either push back, or pull back on the center spoiler peice as shown. It may seem like it doesn't want to go, but it will pop loose. When it does, you will be able to remove the center peice.

Now reopen the hatch, on each side remove the 2 screws that go into the side spoiler peices as shown below. The passenger side peice will just pop off after these are removed. Grab ahold of it and pull it STRAIGHT away from the car. It will pop out.
The driver side you have to turn out the antana, then use a flat screwdriver, or anything else flat you can find to twist the base of the antana. Once both these peices are removed, pull the seal out of the bottom, this side will now pop off the like the passenger side.

Lastly, if you are planning on putting this spoiler on your car, you may want the metal brackets and the plastic clips that hold the spoiler on. For the plastic clips, simply stick a flat screwdriver under them and pop them out of their square holes. For the metal brackets on each side, remove the 4 screws as shown.