That is how to remove it, but it is a little vague. I just remembered an old pdf in the LED taillight thread (the ebay led taillight assembly). C5BlkVette made a pretty awesome pdf on how to remove the OEM one and replace it with the LED one. It has a much more step by step procedure. Here is the link I copied from the thread to pdf file.
http://www.megaupload.com/?d=S33Z6LS8
Traildust if you read this, this pdf should probably be added to the taillight removal sticky as it goes into MUCH more detail/step by step as opposed to the 2 pictures/few steps
EDIT: Thanks, buddy! I downloaded it and will host it on my own file hosting service and then amend the sticky thread. That's usually preferable because you don't know how long files by others will be hosted, and MegaUpload where it's hosted now kind of spams downloaders with stuff. Anyway, I'll update the sticky...thanks again!
TrailDust