The problem now is - my Win XP bootable cd is not getting detected, so I'm unable to re-install Win XP
It isn't. But you should upgrade. Vyom runs Win 7 on his P4 so I guess that your PC can also handle it easily. I mean, seriously upgrade.
If you are trying to install the Windows XP from scratch on the laptop, please BE SURE that you put the Hard Drive on "Compatibility" mode in BIOS, which was defaulted to "AHCI" (Compatibility is also known as IDE).May be one day !
But my pc is giving the blue screen of death message when I try to install xp.error 000007
Let me get out of that first