For a detailed explanation - including many visuals - see the .pdf file via the Related link.
search for echo manual torrent
Disc in front, drums in back.
Disc brakes in the front, drum brakes in the rear. Anti-lock brakes were optional.
There are none.
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil
According to my reference, there was no 2004 Toyota Yaris but there is a 2004 Toyota Echo. (The Yaris replaced the Echo in 2006). See sources and related links below.
See related link.
See related link.
Pretty sure its the same as the 2000 Toyota echo, see related link.
Which bulb are you trying to change?
http://groups.msn.com/Sorensonbrian/frontbrakepads2002.msnw
Not unless you have run out of gas.