Retrieving audit trail info on employee record changes (Crystal Reports)

SOLVED

For security purposes I am setting up reports that will show employees hired in the last week and direct deposits that were changed in the last week.

I have a few questions:

1.  Is the identity of the user who added an employee available?

2.  Is the identity of an individual's supervisor available?

3.  If a direct deposit routing or bank account number changes on an existing employee, is there a way to identify the change and who made the change?