NTAccess can replace the Admin password of your Windows NT, Windows 2000, Windows XP or Windows 2003 system by rebooting your computer with a special set of boot disks. NTAccess will make these disks for you, it is easy and fast. This product is a must if you forgot the administrator password and cannot get into your machine anymore. NTAccess is available online, with immediate delivery for only 70 bucks! The alternative is reinstalling the Operating System and potentially lose a bunch of your stuff. Get your copy of NTAccess now! Scroll down right to the Online Shop link if you need to get into your system again!

http://www.sunbelt-software.com/product.cfm?id=265

That should work for you.