Increase pressure on user photo

- Add a photo field on the registration form thanks to a new module "Registration with picture" (https://drupal.org/project/reg_with_pic).
- On user profile page, display a small text instead of the default picture.
- Sends a note on each login to remind about the photo.

The photo field on the registration form appears at the end of the form, which is not so fancy, on the module web page they say we can use "Registration Picture Field Weight" to fix that, but where it is ?
Do we need to email from time to time ?