Having them show up on the top of the calendar is really great, and I agree with prior posters that having a dated task stay in the calendar-view list until it's completed would be a really good improvement. I hope that Microsoft fixes this in a future update. It is a pain. The help isn't finding anything to assist. I'm really surprised that Microsoft missed this.
Entourage is really a very nicely designed package otherwise.
Kudo's to the Microsoft Mac team. But please Microsoft, don't wait a year to update and improve Entourage. I used this extensively in Consultant. Opening a separate window to view my tasks is annoying, and this is certainly a task that could just carry over until it was done. Almost every PIM has this feature.