recovering outlook express XP email

My Windows XP computer recently crashed so I decided to do a dual install by placing Win 2k the hard drive along with my damaged XP install. I just needed to recover my files and my Outlook Express email. I was successful as far as recovering the files, but my Outlook Express email did not come over. I understand that even if I had used another copy of XP rather than Win 2K, I would still have the same problem.
Please tell me how to go about recovering my Outlook Express email.