remove the wheel
remove the pins/clips/bolts (dont remember what holds the pads in place)
remove the 2 bolts that hold the caliper on (14mm i think) you dont have to remove the brake line, just move the caliper out of the way and have it supported by a bungee cord so that the tension is not on the rubber brake line.
once all that is off the rotor will slide right off. its not bolted onto anything just sandwiched in place by the caliper. its aligned with the wheel studs.
TIP! before you pull the caliper off the rotor stick a large screwdriver in between the rotor and pry against the caliper so that it moves the caliper and pushes the piston back in, do this very slowly so that it will not draw in any air and give your brakes a mushy feeling. you have to push the piston back in, in order to make room for all the new material on the new pads.
very simple job, to prevent squeaks smear some grease on the back sides of the pads where they touch the caliper fingers and piston on the other side, be sure not to get any grease on the break pad surface its self or the rotor. a can or two of break cleaner does wonders with this job too.
Good luck!