autosubscribe port to drupal 7

I tried port autosubscribe module to drupal 7.

I have problems with:
- function notifications_autosubscribe_form_alter() - form "notifications_content_settings_form". Where is this form?
- function notifications_autosubscribe_form_alter() - form "user_profile_form"/"notifications_content_settings_form". Is necesary use ['messaging'] ?
- function notifications_autosubscribe_notifications_node_form_alter() - Where is this form?

(To check this patch you have to apply #1370314: method set_account() calls are not changed to set_user)