Binos
The e-mail folders are stored in a directory with a path name similar to below (when comp user name is yours) The directory after Identities will probably have a different set of characters.
C
Documents and Settings\comp user name\Local Settings\Application Data\Identities\{F07289EA-C705-4DD4-9A2A-56DE4B7888A6}\Microsoft\Outlook Express[
Look and see if the old folders are there
Hope this helps
CK