Holly:
It looks like files that Windows needs to boot are missing or corrupted. My suggested treatment is to reinstall the operating system, as this Microsoft article explains:
http://support.microsoft.com/kb/315341The steps to follow are also here:
http://www.microsoft.com/windowsxp/using/helpandsupport/learnmore/tips/doug92.mspxThe steps are:
1. Configure your computer to start from the CD-ROM drive.
2. Insert your Windows XP Setup CD, and restart your computer.
3. When the Press any key to boot from CD message is displayed on your screen, press a key to start your computer from the Windows XP CD.
4. Press ENTER when you see the message To setup Windows XP now, and then press ENTER displayed on the Welcome to Setup screen.
5. Do not choose the option to press R to use the Recovery Console.
6. In the Windows XP Licensing Agreement, press F8 to agree to the license agreement.
7. Make sure that your current installation of Windows XP is selected in the box, and then press R to repair Windows XP.
8. Follow the instructions on the screen to complete Setup.
For step #1 you might have to change the BIOS settings. But first, start with step #2. If you see the words "Press any key to boot to the CD..." then you don't have to do step #1.
Let us know if you need help.
Good luck!
Doc