New register field only work in Address.php. Not in Customers.php

[rbfabbri]

Hi, i'm trying to add a new field in register form but only works altering the Address.php file and storing data in ps_address table.

When i try to alter the Customers.php file and store in ps_customers table shows an error:

an error occurred while creating your account

I'm doing the same thing on 2 files. Like this post:

http://www.prestashop.com/forums/viewthread/13859/#62624

What's wrong?

Thanks!