I made som mistakes when i was installing a video driver on my MAC OS X x86 so i decieded to reinstall MAC OS X, i originally installed it on a partitioned harddrive one partion with 170 GB NTFS and the other for MAC OS X, but when i boot from the kalyway CD with the darwin bootloader its like it havent noticed that i have formated the small partion for MAC OS X, so how do i delete the MAC OS X startup volume from the darwin bootloader?

I have posted a image to explain my problem, every time i press enter to boot from CD it returns to this:
ImageShack - Image Hosting :: img0488jl2.jpg
So how do i delete the startup volume?