As you have discovered Outlook 2000 doesn't work well, if at all, with Windows 7. If you used it for e-mail then you would find it didn't remember the password and other problems. WAB was associated with Outlook Express which isn't available for Windows 7 so copying that file over will not work.
You could investigate exporting your contacts as a csv file and then importing into Windows Contacts on the laptop. You may lose some formatting.
Exporting the calendar to Windows Calendar may be more difficult.
Don't see why newer versions should not be able to import the old pst files but seems an expensive fix.