big thing to remember when you are bleeding your brakes are
1. the master cylinder has to have fluid in the reservoir at all times.
2. the person pumping the brakes should NOT let off the pedal while the bleeder is open. if this happens you run the risk of ******* fluid back in.
3. dont leave the bleeder open for too long. if it is open when the pedal is at the floor you run the risk of ******* air in.
also that crap about bleeding until the color of the fluid changes is wrong. you bleed the brakes until you have no more air coming out of the lines. it will be ready to hit the road when you open the bleeder and only have a constant stream of fluid comeing out. that means no spitting or sputtering and no bubbles.
enjoy
also why does your caliper need to be changed? is it sticking? your car is pretty new to be needing a caliper...