Q: How to format MBP with boot camp and no admin info

You can do an erase and install from the 10.6 installation DVD.

http://support.apple.com/kb/HT3910?viewlocale=en_US

When booting with c held down you get to a screen before selecting install. There is a menu bar at the top with a Utilities menu toclick on and select Disk Utility. You select the entire drive and erase. Check under Partition/Options that you have a GUID Partition Table and that the Format is / OS X Extended Journaled. Quit and you are back to where you can start the installer.

Here is a link that may help which was posted by community participant ds store.

https://discussions.apple.com/docs/DOC-3393