The latest version of ophcrack is 3.3.1
Please select the file appropriate for your platform below.
Windows 
ophcrack-win32-installer-3.3.1.exe
Windows 2000, XP and Vista are supported.
md5sum: b7124dfbca72b4c7008df620d8179038
md5sum: 740eef54e9082f26851e15c1cb4ef55c
The latest version of ophcrack LiveCD is 2.3.1 (including ophcrack 3.3.1)
ophcrack XP LiveCD 
ophcrack-xp-livecd-2.3.1.iso
md5sum: 1332a09a351b3f05a7524dded9cdedb1
ophcrack Vista LiveCD 
ophcrack-vista-livecd-2.3.1.iso
md5sum: 080a75ed7af82b58b1659ec1a88a15c4