In December 2006, I did the Torres Del Paine Circuit in 8 days. My itinerary followed the usual:
Day 1: Guarderia Laguna Amarga to Puesto Seron (20km)
Day 2: Puesto Seron to Refugio Lago Dickson (18.5km)
Day 3: Refugio Lago Dickson to Campamento Paso
Day 4: Campamento Paso to Refugio Grey
Day 5: Refugio Grey to Campamento Italiano
Day 6: Side trip up Via Frances then Campamento Italiano to Albergue Los Cuernos
Day 7: Albergue Los Cuernos to Campamento Torres and side trip to the Torres Del Paine lookout
Day 8: Campamento Torres to Guarderia Laguna Amarga (I walked) and the bus to Argentina