you can also find PDF's of the fsm from time to time. I have one for an 01 which should be similar enough to your 02. PM me your email address and I will send it to you tonight.
As for difficulty of replacing the bushings... it's not a complicated job, but it does kind of suck. You could probably take your tire off and visually figure out how to do it. Those fasteners just see a lot of water and the ball joints are compression fittings, so they are designed to get tighter with time. If you don't have air tools, it can be a pain in the ass.