I can't find the video anywhere on that website. The "Bush speaks to soldiers" link just takes you to an article.
From http://www.thecarolinachannel.com/index.html:
Bush Makes Surprise Visit To U.S. Troops In IraqAir Force One lands in Baghdad -- its lights darkened -- as President George W. Bush makes the first visit to Iraq of any American commander-in-chief. More Details .President Speaks To Soldiers --- CLICK HERE
President Speaks To Soldiers --- CLICK HERE