McCline and Bergeron hurt Valuev as well as the others mentioned. I think Haye shook him the most though.
No, they did not take their big punches. Almost everyone got KOed or retired thus escaping the inevitable KO.
I think it was because after 35 minutes of running, Valuev did not expect to be punched. It's the punches you don't see coming that hurt, Valuev was tricked into thinking it was a marathon.