Payroll Run

I have one employee - Hire Date - 1 July 2007

My control Record shows the Payroll Period as 09 2007 01.09.2007 30.09.2007

First Question: Why does the control record show the payroll period as 092007, when we are still in 072007?

Second Question: When I run Payroll, the payroll is run for three periods (I am only running for one employee and there are no other employees in the Payroll Area)

07/2007

08/2007

09/2007

Why? I expect it to run just for one period.