After clicking the Download ophcrack LiveCD button in the previous step, the webpage above should display.
Click the button corresponding to the operating system of the computer you'll be recovering the password on. The operating system of the computer you're using right now doesn't matter.
For example, if you've forgotten the password on a Windows XP computer, click on ophcrack XP LiveCD. If you've forgotten the password on a Windows Vista computer, click on ophcrack Vista LiveCD.
