I know there is a video that shows how to do what Gil just said, but I can't seem to find that for you. But as he said, make a custom view based on the order that you want to have things in. Then, when making creating a new sequence, there is wizard that opens... most people click too fast thru that... but one of the screens asks you to select a view. That is where you can use a view set up to the order you like.