1) add "distribute email" event which include $(UserName) and $(Password).
2) I have the same issue to set UpdatePassword to force changing password. I will first note down the UserID of the last record in [Users] table. For example the UserID is 1234. Then execute the import. Afterwards execute the following SQL statement either in SQL Server Manager or in DNN. I have never tried adding it as SQL event of the import process, 'cos I'm not sure about it's running sequence.
UPDATE Users
SET UpdatePassword = - 1
WHERE (UserID > 1234)
good luck.
Eric