Hmmm, I'm puzzled... but that is happening a lot to me today. Maybe I need to go back to bed and try waking back up again, lol! For some reason, I don't think that is going to do the trick.
Is it 90* off when taking the video or 90* off when viewing the video? Camera ICS does both for me. And maybe I have completely misunderstood what you are trying to accomplish but I reread it and I think I understand. If I take the video with Camera ICS (and I am using the free version), it takes it in portrait and plays back in portrait. If I use the stock, it will take the video in portrait but it plays it back where you have to turn your head parellel to the ground (tilted 90* on its side) with phone upright to view it right side up (which is about the stupidest thing there ever was).