at the same height as the buttons 'save image' [on the left] and 'open image'etc on the right, there is something that looks like a link which gives you color space, bit depth etc..
I don't see any of these in your screenshots. If they are not chopped off in the screen shot, maybe the window ACR is in has in some way become to big. You can make it smaller by dragging from one of the corners. If you let the cursor hover there you'll see a double arrow. This BTW is in W7, details may be different