There are two things on the windows xp cd you can try, but if like you said, the cd won't load, unfortunately you may be in trouble. If you put the cd in, and re-boot with the cd in, will it start from the cd?? You have to press any key to load the cd up. If you can get into the cd, I would first try the repair windows option, just follow the selections to get to the repair option. If the repair doesn't work you can try the recovery console, again you hve to boot the cd, then follow the prompts to get to the recovery console. There are alot of options there to try. If none of them work, then your only option is to re-install windows. I would suggest to install another copy instead of overwriting. If you overwrite you can lose some settings and saved stuff, but if you install new as "Windows2" or something different than the default, it will install a second copy of windows, then you cann access all files on the hard drive. I would only suggest this if you have plenty of hard drive space though. I hope you can access your cd, if not you will not have much else to do but maybe using the restore cd from the computer which will re-format the drive and install to factory defaults. You WILL lose all saved items. I hope this helped.
Lampdoc