most of the tutorial use mac os.
u need to find tutorial use windows or linux… the setup is different from mac, linux and windows.
this one of them http://www.multigesture.net/articles/if u using windows u really needed Cygwin (most important).
Cygwin it for compile the c*+ for android or java can read it.
if u use the newest android ndk u need compile it 1st because it some of the samples is using crystal android ndk r7 or lower.
and dont forget setup ur android ndk on eclipse.
its better using the device than use the emulator.
and dont forget after u compile the c*+, u will need clean the project 1st (project ~~> clean~~> [project name])
i hope this will help u for making a great game