I made some changes in the POST source code. As Tadas said, I added "post_code(0xii);" where ii=20,21,22....to various files. Should I revert those back? 
I think we should keep them and use ii=E0,E1,E2,E3.....as errors. But then it would restrict it to only 10 numbers. What do you think?

Abhinav