Comment Wikileaks Mirrors (Score 1) 966
Currently it appears that the main wikileaks site is unavailable. Thankfully wikileaks is actively mirrored, a list of which can be found on http://wikileaks.info/, http://mirror.wikileaks.info/wiki/Afghan_War_Diary,_2004-2010/ ought to take you straight to the original page.
On a side note, the guardians' data blog have a nice writeup and sample of the data: http://www.guardian.co.uk/world/datablog/2010/jul/25/wikileaks-afghanistan-data