Hey Mrwinston,
You'll also need to remove the chrome trim ring first. Same way, just use something small and not "paint scratching" to pop both off to get access to the bulb. Jerry's right on about using some soapy water to make it easier to put the light back together. I use a small flat tip screw driver and start at one point and work the glass lamp into the rubber which is pretty easy and then take your time and be careful working the chrome trim ring into the rubber. Start at one point and work around the trim ring to pop it into the rubber. I've done this many, many times so comfortable using the flat tip screw driver but that is a sure way to slip and scratch your paint so follow Jerry's advice and use a small teflon or such flat piece so if you slip it does not scratch your paint.
Regards,
Mike