Extract boot1h from your desired Chameleon package , save it to the root of your USB , rename the USB "1" ( without the quota ) . Boot into your USB Installer , unmount your Mac partition in Disk Ultility. Open terminal, type: disk util . After find out your mac partition's indentifier, type these two commands:
cd /Volumes/"1"
dd if=boot1h of=/dev/disk0sX ( with X as your mac partition's indentifier )
Reboot. Hope this helps