There are 2 basic approaches:
1 – restore to an Exchange 2003 server. Means you need the Exchange 2003 server. We virtuilize the last one as part of a migration just in case
2 – Use Quest’s Recovery Manager for Exchange <a href=”http://www.quest.com/recovery-manager-for-exchange/”> </a> or Ontrack”s PowerControls <a href=”http://http://www.ontrackdatarecovery.com/email-recovery/”></a> Both will let you restore messages or mailboxes from full backups without a full restore.