I got a problem while trying to install leopard

hello
i have been trying to install Leopard from DVD9 with new patched leopard installation plus the patch after the install
everything went fine until the part which i was required to patch the installation
it was asking me to type this:
cd ..
cd ..
cd Volumes
cd Patcher
cd Files
./9a581PostPAtch.sh

and then click yes to delete the ACPUPowerManagement.kext

now i got stuck in the line cd Patcher , it just told me the file/folder doesn't exists

what can i do????

thanks in advanced

no1 has an answer for my problem???