Importing OE or Outlook Messages

Can someone please help. I have an ACER desktop PC with OE6 and Outlook 2003 and Windows Media Edition installed and I want to transfer my messages to my new ACER laptop which has Vista and Windows Mail. I have created a folder under Users\User\Documents\OE Mail and copied the OE6 .dbx files into it. When I try to import OE6 messages into Windows Mail it reports that no items match the search when the above folder is browsed. As an alternative, I created a similar Outlook folder and copied the Outlook .pst file into it. When I try to import from Outlook I get the message "Messages cannot be imported from the MAPI client", i.e. it doesn't allow browsing of the folders. I do not have MS Office installed on my laptop and I assume that this is the problem. Any suggestions would be very much appreciated. In case anyone is wondering why I need my e:mail messages on two computers, it's because my desktop is faulty and will have to be returned to the supplier.