Since you're not running OS X yet you should be posting in the installation forum. Pick the right subsection here:
http://www.insanelym...p?showforum=137
You can try the JMicron injector kext that comes with the Chameleon bootloader.
I have never used it myself (Marvell IDE controller here) but try it and see.
I don't know how you're planning to install OS X on your PC but here's what I would do:
Find a hacked distro installation DVD (any OS X Leopard version will do, it's only for preparation use) that will boot and run on your hardware.
Boot from it and use Apple Disk Utility to format and partition your HDD in GPT/HFSJ+ non-case sensitive.
Create one partition for the installation, an 8 GB partition and (if you like) a third for data, in that order
Install the hacked distro to the first partition, it's not important that everything (like graphics acceleration, time machine, correctly identified hardware) is working.
Boot from it and whip out your OS X retail install DVD and use Disk Utility to 'restore' it to the 8 GB partition.
Make a Chameleon Boot CD (instructions, FAQ and more at the VoodooProjects forum) that you can use to boot the partition that holds the retail install DVD.
Locate the proper kernel extensions and patches you need to run retail OS X on your hardware (this is the hard part).
Use a CD-RW and keep making Chameleon Boot CDs until you can successfully boot the partition that holds your retail install DVD from it. When you are confident that it works right (you can verify almost everything with System Profiler), boot into the installer partition and use Disk Utility to format your existing OS X install partition and go ahead with the installation.
Use your boot CD to boot into your fresh retail installation, then install Chameleon to the EFI partition so you don't have to use the boot CD anymore.