I have been trying to dual boot xp and snow leopard on my pc and I have gotten up to step 6 ( http://osx86.thefreesuite.com/leo_intel.php ) how would I boot from a dvd on my pc? When booting i hold down delete and go into Phoenix Awardbios Cmos setup utility, from there i go to advanced bios features. there is no option for booting for a dvd, only hard drive floppy disk cd ETC. Please help

I have windows xp and a snow leopard disk