You need to set your CD/DVD ROM above hard drive in bios for the boot order, alternatively if the laptop has a boot menu use that manually select the CD/DVD rom. It should give you an option to hit a button to boot from CD/DVD for about 5 seconds, if you are not getting this after that it might be that the CD is damaged or that your laptop only has a CD-ROM when the disc is a DVD. These are things you are gunna have to check for yourself however.
P.S. while this laptop previously had Linux, this issue has no real relation to Linux at all.
Last edited by r3sistance; 01-26-2010 at 07:24 AM.