Sata Drives Boot Disk Failure

[Spykar]

Hi
Bought brand new PC with the following specs:
corsair hx620 PSU
eVGA 8800GT
Samsung 500GB SATA HDD
Asus QuieTrack Lightscribe DVD+-R/RW CD R/RW SATA
GA DS3R Motherboard
Intel Q6600
thermaltake ultra 120 extreme

Trying to install windows for the first time,
I get this boot disk error. It says please insert system disk and press enter. The disk in the drive is a Windows XP2 CD. The boot priorities is:
1. CDROM
2. HDD
3. None

I know there is no problems with this though as the green light flashes on the CDrom drive when it tries to boot from cd/dvd. The HDD and CDROM drive are detected in the BIOS (that is, it has given them their names when i see them in the master slave drive listing thing) which is confusing.
After browsing the net, i've come across some articles that say I must install SATA drivers, but I can only do that when I get past the screen that is showing my error (when I can press F6 or whatever it is)

EDIT:should also say I don't have a floppy drive.

Any help will be appreciated.

[ApPy10]

when you boot, do you get a message onscreen saying "press any key to boot from cd/dvd drive" ?

if so, are you pressing a key