Hi, if you want to add / remove fields from the New Contact view you need to edit 'application/controllers/ContactController.class.php', functions 'add' and 'edit' (these two get called before rendering the forms and after the form is submited) and you will also have to edit file 'application/views/contacts/edit_contact.php'. This last file renders the form fields.
Hope this helps a bit. Please ask again if you have further quetsions.