I am considering purchasing an Odyssey. We will soon have 3 children, all of whom will need a car seat. At the dealer, they said that all 5 seats in the 2ndh and 3rd rows use a set of 3 anchor points in the roof. A question for those who have used these:

1) When using a child seat in the third row seats, the salesman said that the anchor strap goes between the headrest and the back of the seat, before going up to the anchor point in the roof. This didn't seem right to me - is this really safe?
2) Salesman said that although you can have a child seat in any of the 5 back seats, you could only ever have 3 in use at a time. In order to have three child seats, and not have them all in a row, the best option seems to be two in the 3rd row, and one in the middle of the 2rd row. Any comments from others as to how well this works? Do you suggest another configuration?

Thanks,

Naith