Jon Henke has compiled every (notable) reference to Iraq from the 9-11 Commission Report report into one place. Jon's conclusion:
While certainly not conclusive evidence of extensive collaboration, the 9/11 report seems to give a great deal of weight to the charges that there were "ties" between Iraq and Al Qaeda. It also rains on the parades of one Mr Clarke, who had claimed Iraq was a diversion, that there was "absolutely no evidence that Iraq was supporting al Qaeda, ever". In fact, it is quite devastating on that point, using Clarke's own words.Very interesting stuff.