Yeah, lady in Babyco the other day was saying the booster seats are not a safety seat whatsoever, if your child is not big enough to go onto normal car seat, they still always need to be wearing a 5 point harness. A friend of hers daughter died in a car accident after being in one of those booster seats where the seat belts go under the clip at the top, because she wasn't wearing a harness, she slid right out from under seat belt.

I would definately get some advice from someone in the biz.