I believe there is info on the Microsoft Office Mac site that pertains
to importing Outlook data into Entourage. The bottom line is that it is
difficult, and all I could manage were the e-mail messages. I lost
everything else.
The method I used was as follows: I imported my Outlook data into
Netscape Communicator which put it in a form that allows it to be
imported into Apple Mail, which I did. I then imported it into
Entourage.
MOS