Hi,
I don't think someone will actually provide you with a step-by-step
guide. But if you are looking for implementing a 5-point touchscreen
calibration you can perhaps refer to my Gingerbread port that makes
use of the data of a pre-generated pointercal file.
http://sourceforge.net/p/ipaq214android/
Perhaps I will be writing an apk which allows calibrating inside
Android later...
Good luck,
Alvin Wong