How to change the base field label in openerp 6.1


researchorial but indeed i have done all the google around what i want o achieve in openerp that how to change those fields label ,i don't wanna play with fields and i know how to create new fields but what about base fields i am not able to edit them they throw some error that you cannot change the base fields from here so objective is clear that those label like Company, SSNID in hr module i want them changed according to them nothing else!!

please do not post links of already same question cause they had not been answered !!

Thank You

Create New Hr employee Inherited view By this way.

<record model="ir.ui.view" id="updated_hr_form_view">
<field name="name"></field>
<field name="model">hr.employee</field>
<field name="type">form</field>
<field name="inherit_id" ref="hr.view_employee_form" />
    <xpath expr="//form/notebook/page[@string='Personal Information'/group/field[@name='ssnid']]" position="replace">
        <field name="ssnid" string="Your New Label"/>