Compaq NC6220 stuck in Win XP installation

Hello,
I have a Compaq NC6220, HP, that I had installed a trial of Windows 7 on. As the days of the trial were coming to a close, I went to install Windows XP on the laptop. After the majority of the installation (which worked fine on my desktop), I got a message that said there was an fatal error and that the installation could not continue.

Once it restarts itself, it comes to the same screen and runs all of this trouble all over again. I've tried to set the laptop to boot from the CD to maybe restart the installation, but that has proved worthless.

In my possession, I have some blank DVDs and an external hard drive if any of those are needed to help get this laptop working again.

Thank you so much!