If its anything like an 03, theres the metal clip, you just un-hook it and then the rubber thing with 2 "fins" on it should just pull out with not a lot of force, and then the bulb will slide out easily after the rubber grommet thing is removed.
and another thing with the "HID" bulbs.... I have the eurolite xenon bulbs (which are blue) they are not actually HID, when the lights are on they are not blue, they are white.