This Israeli site gives the translation to the arabic text that went along with one of the graphics (The one with the mushroom cloud over New York) that were linked earlier, somewhere within the last thousand or so posts. They also show the original graphics as well as the original text.
It is dated December of 2002. For some reason, I was thinking that this type of threat was a relatively new thing. It seems as if these guys have been at this for a while.
http://www.idf.il/newsite/english/0119-3.stm