Mac OSX Snow Leopard 10.6.3 CD in Virtual Box in Windows 7

Read some articles about install Mac OSX Snow Leopard 10.6.3 in Virtual Box in Windows 7 using official CD. And make some summary:
1)iboot.iso  from
http://www.tonymacx86.com/downloads.php?do=cat&id=3
2) Oracle VM Virtual Box:
https://www.virtualbox.org/
3) imgburn:
http://www.imgburn.com/index.php?act=download
Following instruction from
http://www.sysprobs.com/install-mac-os-1065-snow-leopard-virtualboxseveral-issues-fixed
http://www.tonymacx86.com/hardware-troubleshooting/112092-ebios-read-error-error-0x0c-block-0x18a96a-sectors-0-a.html
Still errors
EBIOS read error, error 0x0c,
block 0x0 sector 0
 Later reset storage as following:

Then start, iboot is working and switch to Host Drive "D:" (set in SATA port 1, passthrough is checked)
The  error disappeared, and following shown:

But system hanged in "Mac OS X install DVD"