try ophcrack easy to find.... and comes in a windows xp variant and vista variant, its boots up a linux install and cracks ur password. Ophcrack download and burn onto a disk and boot from it... choose GUI mode and it does the rest. usually cracks an easy password in a coupla minutes
I'm sorry but the statement that the safe mode only works for windows 98 is completely false. I often get laptops form clients who give me the wrong password or none at all. I have alwaysed used the safe mode to fix this issue.