I just bought a MacBook from a pawn shop. It is administered by the previous owner and I have no password to change the settings. How do I reset the password?

I just purchased a MacBook from a pawn shop. The computers previous owner has all of their admin settings already in place. How do I, I guess re-register the computer to me when I do not have her password to do so? Any help is appreciated!

You could try that one but there's no guarantee it will work.  Apple's system DVDs (it's a DVd not a CD) are often machine model specific nad there are many sub models of MBP.
Here's older posts but maybe they still apply:
Mac OS X 10.6 Help: If you forget your administrator password - http://docs.info.apple.com/article.html?path=Mac/10.6/en/11627.html
Reset OS X Password Without an OS X CD - http://theappleblog.com/2008/06/22/reset-os-x-password-without-an-os-x-cd/
rccharles post on editing password with single user mode - http://discussions.apple.com/thread.jspa?threadID=2747898
Regaining lost admin status on OS X - http://www.salingfamily.net/trav/osx/regain_admin.html
Running OS X Setup Assistant (another topic) - http://discussions.apple.com/message.jspa?messageID=9581230

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