Re: right sidelight help
My son and I were struggling with mine yesterday!
It's a bit inaccessible, but once you've got the cover off, the sidelight bulb-holder (which is partially hidden by the wiring of the headlight bulb) is outboard of the headlight bulb. In other words, if you're standing in front of the car looking under the bonnet, look to the left fo the headlight bulb, ie, further to the off-side. The bulb-holder has a black plastic finger-grip roughly the size and shape of that of a Yale-type key. You need to get hold of the black handle and give it a good wiggle, and the bulb-holder should pull out. It's pretty well described in the owners' handbook, if you have one.
Be warned that the bulbs are halogen jobs and pricey!