My ethernet is the Marvell Yukon 88E8056 I believe, so I had to find the AppleYukon2.kext and that worked. I switched to an Airport Extreme card from eBay for wireless.
You can also boot into OS X at this time first if you want to setup your account first then follow the steps below
So now that OS X is installed when the mini reboots and you see the Chameleon boot loader. press any key to enter setup.
now type -s you should see boot: -s on the bottom left hand side of the screen, now press enter and it should boot you into single user mode.
with you get the command prompt it will look like this:
now type /sbin/fsck -fy and press enter
after it does its thing type: /sbin/mount -uw / and press enter
don't forget that / after -uw or you will not have write access.
Do Exactly as I say or you will hate life =)
Type: cd System/Library and press enter
Type: rm -r Extensions.mkext and press enter
Type: cd Extensions and press enter
Type: rm -r AppleIntelGMA*.* and press enter
Type: rm -r AppleIntelIntergrated*.* press tab and it will fill in the rest for you and press enter
Type: shutdown -r now
This will remove the kext cache and all of the Intel Graphic drivers because they do not work correctly (stuck at 800x600) and the system should now reboot. If all went well you should be at the screen to enter in all of your info and user account =)
Once you are at the desktop of OS X you can now install the video drivers from the Display Package I put together (I take no credit for the actual Drivers)
here is the link again:
*Display_iAtkos_v7.zip ( 353K ) Number of downloads: 1437
and OSXTools OSXTools 1.0.150
You can download them directly or download them on another computer and put the files on a flash drive, just make sure to copy them to the Desktop to make things easier.
Once you extract The Display Package to the Desktop you should have these folders:
Now Start OSXTools and click install kexts
browse to the dir First and select all (3) kexts
and click install.
After the kexts instal with will pop up asking to reboot DO NOT REBOOT!!!!!!!!!!!!!!!
if you reboot you will have to go into single user mode again and remove all the files again SO DO NOT REBOOT YET! CLICK CANCEL
Now open the folder Second and click on GMA950.pkg and a setup window will pop up.
click continue, click install put in your password if you have one and proceed. after the install you can now reboot.
Once you reboot you should be back at the OS X desktop but now with working 1024x600 resolution! you can now enable Quartz.
To enable Quartz open OSX86 Tools and click the Enable/Disable Quartz GL button. It will tell you the current status. If its disabled, feel free to enable it by clicking the button that says "Enable Quartz GL". after Quartz is enables the system will need to rebooted.
You should now be fully working on OS X 10.5.7
You can also update from the Software Update by click on the apple logo on the top left.
Make Sure you UNCHECK AirPort Utility Software Update or you will be left without a Wireless Connection! if you wind up updating AirPort Utility Software Update you will have to track down the BCM43xx kext and reinstall it. but make life easy and uncheck AirPort Utility Software Update.