Mass Update Talent Center Login

Summary

Ability to mass update Talent Center Logins for employees

Content

We are in our first evaluation cycle using Taleo.  Our Taleo employee codes are the employee numbers which in our organization begin with leading zeros if their employees numbers are less than 6 characters.  However most employees do not realize their employee number begins with leading zeros.  Taleo sest the employee's Talent Center login to default to their Employee Code (employee number in our case).  We would like to update the Talent Center Login to drop the leading zeros.  Is there a way to import into Taleo employee Talent Center logins?  I'm anticipating a lot of frustration and phone calls because employees will not