I finally got everything installed correctly. To triple boot, I installed Leopard first, Windows 7 next, then Ubuntu last. Windows 7 changed the bootloader so you couldn't boot anything but Windows 7, and deleted the partition Ubuntu was installed on. Chameleon wouldn't boot Windows 7. I ended up having to use GRUB to boot them all.

In Windows 7, I found that the Wired Network Card for my laptop is an Intel card. I tried the Kext that isn't Gigabit, but haven't tested it yet.

My three main goals are to get Wired and Wireless Networking on my laptop, and to get the DVD drive to work.