It deletes all info in all fields of the same category (not only the field that I´m updating).

Hi!
I´ve tested this module and it works, but it deletes evy other information that the user have in their profile that´s in the same category. I understand that it should delete all field information to be replaced with the new stuff that I write using this module... not all stuff in all fields of the same cetegory.
Thanks!
Rosamunda