You have to take off the Screen hinge cover, The screen (4 screws), and Keyboard (two screws). Then there are 7 screws holding the palmrest down. That is what is keeping it from comming apart.
The resolution can be fixed by installing the MACvidia drivers as long as you have an Nvidia card. As far as the wireless goes, there are some supported Wireless cards as of 10.4.7. I do not remember if the Intel Wireless ProSet is one of them.
If you have wiped out the drive and are using the apple tools to partition the drive be warned. It does not set the partition active. So you need to boot with a DOS boot disk, or boot USB drive and use FDISK and set the partition to active.