64-Bit 10.6.3 in VirtualBox?

[detection]

Hello all,

 

I've recently installed retail Snow Leopard 10.6.3 in VirtualBox using nawcom mod CD and it's booting without an iso image. I have VB set to Mac OS X 64-bit, and my host computer is 64-bit Windows 7. But when I boot into my virtual OS X, it is 32-bit. I can't seem to figure out a way to boot into 64-bit OS X. I have tried -force64, holding down the 6+4 keys, and the command line approach found here: http://macperformanceguide.com/SnowLeopard-64bit.html

 

Would anyone be able to lend a hand?

 

Thanks!