I am installing Mac Os 10.3 on my friends g3 B&W and when it gets to the part where you select the destination, no destination is displayed. I just put a new rev 2 motherboard in it. I waited for 2 hours and there was still no destination displayed.
Can you boot the Mac from the hard drive? If you can, and it boots into Mac OS 9 (or earlier), you probably have a HFS-formatted drive, rather than HFS Plus, which Mac OS X requires.
If you can't boot from the hard drive, check that new motherboard. It might be dead, or some required cable for the hard drive might not be connected properly.