I think when the overall weekly contribution by members get listed with not anything missing, MOW is announced.
So, the second MOW will be for 6th to 12th Oct 2014 and respectively. However, the one who got higher points (with quality contribution at Article section, Ask Expert section and Product Review section) may get MOW accordingly. Forum section's only valid response and its point will be calculated for this.
To announce Member of the Week, the above stated section posts for certain dates must be approved one (not in pending or new submission status) to calculate overall points for the same.