I am having problems upgrading to XP from ME

I currently own a Sony Vaio PCV RX-280DS which comes with ME factory-installed. I have been trying to upgrade to Xp, but to no avail. The problem I am having is this:
I started the setup program and it went through its routine of intalling setup files etc. Then it restarts, and the touble begins. The computer tried to load XP to finish setup, but it wouldn’t; I got a stop error instead. I restarted the computer to try to find help with Sony. I restarted again and tried to continue setup, upon which I got a different error: “INF file txtsetup.sif is corrupt or missing, status 14. Setup cannot continue.”
I have about run out of things to try.