The Outlook sync is only with the contact entity, and is not possible with the account entity.
One option might be to create a workflow or 'Automatic Record Creation and Update Rule' that creates a contact record for the accounts with type = private, and updates the address, telephone and email fields of the contact when the account is changed. To
make this work, you'd need to set this contact as the primary contact for the account
Microsoft CRM MVP - http://mscrmuk.blogspot.com/ http://www.excitation.co.uk