i agree with Kaz as that was the same scenerio for my DD in 3yo and 4yo Kinder years (one year cut off was Aug and the next year it was July, so who know's with each Kinder ??)!

i wouldn't muck around and just ring the Kindergarten Director asap and then at least you then know and have all the facts for the Kinder you want your child in

(believe me they get first time parents ring all the time with enquires as they aint sure about the procedure and Kinder Directors are more than happy to help you !!)