Try this
use the iATKOS main system checked by default
use the pc efi bootloader
decrypter is already at appledecrypt no need to change this
smbios EFI is the way to go. Goes hand in hand with the EFI bootloader
kernel none for the EFI install

ACPI Standard modified
keep disabler kext
ps2 check
vga leave it blank. will fix with efistudio post install
system sata intel sata ahci
network try realtek 8139

Realize that I mocked this up after just a quick look up of your motherboard. I am new too, but I am getting the hang of this.
I am going to explain a few things in the next reply, so you can understand better.
Made a couple corrections. This is for an EFI system. Try this and report back.

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Intel DG43NB, ICH10, Ethernet Intel 82567V, Audio Realtek ALC888VC, nVidia 9400 GT, Core 2 Quad Q8200 2.33 GHz, 4GB, SATA WD 500GB, DVD Sony DRU-865S
EFI v9 courtesy iPC OSx86 10.5.6 - Updates via Software Update!

God made man knowing his new creation would not live up to Gods' own standards, so God gave him a loophole, ignorance. Now man can exist in their imperfect state and God won't have to squish him. So, if I am ignorant at times, chill. God made me that way.