Ntldr is missing, press ctrl+alt+del

[Wooody]

I am getting a message after deleting AT&T yahoo Internet Software from my machine and I restarted my machine. My windows xp machine was pre loaded on my Sony Vaio Desktop computer, So I dont have XP bootable disk with me. But I have laptop which is running on Windows XP which I am currently using. I have copied ntldr and ntdetect.com onto a cd-r. Can you please suggest me the next step what I have to do further.

[attitude.ashwin]

Please check the below URL for more assistance to resolve your problem, let me know if your unable to do, or if you are facing some other problem related to your machine.

http://www.computerhope.com/issues/ch000465.htm