sorry dont worry about this, i was reading through the documentation and found my answer

"another name different from the default. Software updates from Apple frequently update
the default kernel, which might overwrite the Voodoo kernel and result in an un-
bootable system. "

so it basically means if i just edit the boot.plist or i enter voodoo into my computer at startup it should boot fine. Cheers

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iMac ::: Mac OS X 10.6.1 ::: Intel Core2Duo 2.93GHz ::: NVIDIA Geforce GT 120 256MB ::: 4GB DDR3 RAM

Milanca Project ::: Mac OS X 10.6.1 Retail ::: Vanilla Kernel ::: Intel Core2Quad Q6600 2.4GHz ::: NVIDIA GeForce 8600 GT 256MB ::: 4GB DDR2 RAM ::: GIGABYTE GA-EP35C-DS3R