If you have an Exchange Server, you can set up the Exchange account in
Entourage, create folders on the Exchange Server, and then move contents
from your local folders to the Exchange folders so that they're accessible
on the other machine.
If you are not connected to an Exchange Server, you can use an IMAP server
to transfer mail. You can get a free IMAP account at
<
http://www.bluebottle.com/>. Create folders matching your local folder
structure on the IMAP server. Drag-copy messages from Entourage to
similarly-named IMAP server folders. Go to Outlook and access the the same
IMAP account. Drag-copy messages from the server folders to similarly-named
local folders. If necessary, delete messages from server, go back to the
exporting program and repeat the process as often as necessary until done.
To move contacts, calendar events, notes, and tasks, check out Paul
Berkowitz's "Export-Import Entourage" script package.
http://www.scriptbuilders.net/search.php?search_str=Export-Import+Entourage