i don't think you're trying to remove the entire housing. only the little light on the turn signal area. that's easier than he explained. all you have to do is look at the back of the housing and there is a little plastic piece directly behind the light as you look at it from the front. turn it counter clock wise to open it and remove the bulb. replace the bulb in the bulb holder and re-insert the bulb. it's really easy.

or ask one of the guys at the local shop to do it for you. just be nice enough to hit him off w/ a $5 spot if he does it for you, and maybe buy him a soda if he shows you how/where to do it.