I still followed the same instructions from msiwind.net and osxfujilives but with a "twist" so they say; that is, I had to use the com.apple.Boot.plist from my existing 10.5.7 installation. Plus I did the DSDT patching using the HP Mini (Mac OS X side of course) and just pointed DSDT Patcher to my external HDD from where I was gonna boot Snowy.
First boot: