Well OK, the LegacyBootCD.iso you have posted uses old mach_kernel.test7 made by modbin...
Forget about the myHack installer - I would also recommend you to start from scratch and install an untouched system at this point.
I took the stuff from Preboot.dmg and removed the PS2, Audio, Intel + JMicron Controller + Batterymonitor Kernel Extensions and put everything together for you:
http://www.mediafire.com/?3qmzjn65oyw04g6
After the installation of Snow Leopard, copy the Extra folder + mach_kernel.test7 binary directly into the main folder of your Snow Leopard installation.
Then install Chameleon v2 Bootloader manually - you can read about how-to here:
http://www.insanelymac.com/forum/ind...owtopic=164809
If your system still doesn't boot without the CD at this point, try cpus=1 bootlflag again, it's default in com.apple.Boot.plist present on your EmpireEFI, but I think you should try booting with all cores first.
Hope this way we can make Snow Leopard booting w/out the CD for you.
