My suggestion is to get a repair manual if your going to work on your own vehicle, and it's easy and inexpensive to get a high quality repair manual. To be better prepared, read up on the job you're about to perform, it will show you component locations, bolt torque settings and what special tools you'll need. Try http://bit.ly/mitchell_repair_manuals_online and you can have one in minutes, for less than $30.00.
Good luck on finding the correct brake pads. The ones on my Echo (2001) are no longer made nor in stock... so the manager at my dealer (Wellesley Toyota, MA) did some research and found a set in a storage facility for Toyota. This was after they tried to install ones that were "suggested" as replacements - but actually did not fit correctly and snapped everytime they were used. Of course that was over a year ago and now my rotors are going... and I dread calling the dealer to have them fixed! Love my Echo! Wish they never stopped making them!