Free Republic Documented some of the 9/11 photos of Muslims celebrating on this 2001 thread
http://www.freerepublic.com/focus/f-news/523047/posts
http://nj1015.com/this-is-probably-the-video-you-saw-of-people-celebrating-911/
That thread also documents FOX news saying journalists were threatened by MUSLIMS
http://www.foxnews.com/story/2001/09/13/palestinian-officials-quash-pictures-arab-celebrations.html
Another FR documented thread of photos of cheering back from 2001
http://www.freerepublic.com/focus/f-news/521203/posts