How to edit package in PackageMaker in Xcode 3.2.2 in Mac OS X 10.6 ?

[knoxville]

Hey,

I am trying to edit a package called OSInstall.mpkg with PackageMaker, but I cannot figure out how to get past the following picture and into the javascript.



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I am using this guide to do it...

http://www.insanelymac.com/forum/topic/279088-how-to-patch-any-mac-os-x-restore-dvd-gray-disc-to-work-on-any-computer/