Select File, Import, Messages.... Choose Microsoft Outlook Express 6 and press Next. Select Import mail from an OE6 store directory and press Next. Now on the next screen Browse to the location that you've placed the message store we saved from your old machine. Import, and your messages should now be transferred.
Note: if you've copied your mail folders to a CD-R, you'll need to first copy them to your local hard disk, and then unmark them from being read-only before you import. OE will not open read-only folders.
for anything else OE related there is a wealth of info in the link..