import events BeforeInsert($values)

Hi,

1. How to use the new parameters: $values for import event beforeinsert.
   I want to insert 2 fields with fixed values siliently.
   Eg. Phonebook data in excel: Name, Tel, Fax
   I want to force 2 fixed values: user_id, group_id as part of import data using the beforeinsert event.
   
2. Does the $count parameter at finished import event provide success and fail counts ? how to use it?
   Thanks
   
   acpan