Originally Posted by Paul

You didn't use the export tool in Outlook Express then? Oh dear
You should be able to drop the .dbx file back into the relative folder and then access the mail through OE etc.
Is this any help?
http://forums.devshed.com/archive/t-100792
or maybe this might help you replace the files back to where they need to be
http://www.oehelp.com/OEBackup/Default.aspx
a good site for OE related info can be found here
http://insideoe.tomsterdam.com/