permission on profiles' fields

Hi all,

I'm quite a newbie in Drupal so I think my question will be easy to you all experts. I want to create a strict profile system. After the user registered and submit their profile's information, I review and accept their registration. I want to limit their profile's editing ability to only contact information (e.g address, phone num, email, etc.) and not allowed to mess around with their name, date of birth, gender, etc. They still able to see all of their infor but only edit what I allow them to. How do I do that ?

Please help, thank you very much