I haven’t read all the posts - but, maybe he took the ‘blacks’ comment from an article discussing a SF newspaper column:
http://www.freerepublic.com/focus/f-news/1793274/posts
Note that in the links provided to Kristinn, "The "I hate blacks" comment was nowhere to be found in the other threads referenced."
Maybe the reason the link was not provided is that if O'Reilly used this thread that way he would look ridiculous if it was discovered.