"In one of the clips shown today, Bin Laden and Zawahri kneeled side by side. Zawahri said: "Those 19 brothers who went out and worked and sacrificed their lives for God, God granted this conquest that we enjoy today." -The Guardian http://www.guardian.co.uk/afghanistan/story/0,1284,684901,00.html 
It is important to note that when the video was made is diputed.
Gen. Tommy Franks said recently that Intel at the time disputed whether Bin Laden himself was in Tora Bora, Kashmir or just across the Pakistan border. http://www.chron.com/cs/CDA/ssistory.mpl/editorial/outlook/2856222
I had thought for a long time that he was dead, but Franks comment makes me a lot less sure.