four things need to be available:
virtualbox
hackboot1
hackboot2
Snow_Leopard_10.6.1-10.6.2_SSE2_SSE3_Intel_AMD_by_Hazard
step one – install virtualbox
step two – build a new virtual-machine, selecting all the defaults:

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step three – uncheck the “Enable EFI” option in system—>ExtendedFeatures:

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step four – assign hackboot1 for the cd/rom:

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step five – start the new virtual-machine, and select the mac install disk
from the bottom right corner

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step six – hit F5 a couple of times, DOWN-ARROW, and select boot-verbose
(note this step may need to be repeated several times)

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step seven – on successful boot we should see the mac install:

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step eight – select the disk utility from the utilities menu

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step nine – delete the existing partition and rename it

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step ten – use the new partition to install

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step eleven – wait and wait and wait for the install to finish

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step twelve – start virtual-machine again but this time use hackboot2

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step thirteen – boot off the existing partition!
