Norton Utilities' Undelete and Volume Recover don't always work well, and can sometimes cause further damage, but if you wish to try them, you should do it as soon as possible, before writing additional files to your hard drive. can't guarantee that this will work, and if it is extremely important for you to get the files, you might want to look up a professional data recovery specialist, to see if they can help you.
this is not the greatest time to remind you of this, but you should always, always, always, have backups that are not stored on your hard drive.
zbell