When I saved mine I used the instructions in the Microsoft bulletin:
Copy Mail Files to a Backup Folder
To make a backup copy of your Outlook Express e-mail message files:
On the Tools menu, click Options.
On the Maintenance tab, click Store Folder.
Select the folder location, and then press CTRL+C to copy the location.
Click Cancel, and then click Cancel again to close the dialog box.
Click Start, and then click Run.
In the Open box, press CTRL+V, and then click OK.
On the Edit menu, click Select All.
On the Edit menu, click Copy, and then close the window.
Right-click any empty space on your desktop, click New, and then click Folder.
Type mail backup for the folder name, and then press ENTER.
Double-click the Mail Backup folder to open it.
On the Edit menu, click Paste.
Close the Mail Backup window.
http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3B270670It seemed terribly long-winded but it was successful. I think that it was a far more simple operation in earlier versions of OE. He should have checked that his backup files were good before he reformatted. :'(