It's a big PITA!
There's the obvious bolt on top.
Then there's a couple on the back side. Look down at it from the top and they're by the turn signal and under (? it's been a while) the low beam.
Then there's mister "I-am-the-fucking-bolt-under-the-headlight-that-you-have-to-take-the-bumper-off-to-get-to-and-you-will-never-reuse-me." It's between the low and high beams under the headlight and you have to get to it from the front. If you look under your headlights (through the gap) you will see it.

This is why it's a PITA. You need to remove the bumper to get them out easily, but you have to get them out to remove the bumper! AUGH! Just get rambo with it and show it who's boss!

*EDIT*
Get some bandages and beer. If you don't cut your hand up a bit, you'll still want a buzz the first time you do this one...