not sure if this is a bug or just a limitation but when I have a rounded rectangle selected (and any other of the autoshapes..arrows etc.), the options to change the position of the stroke or have the fill over it are not there.. there's just a blank grey space where they would be on a polygon circle or square. Are they supposed to be there? Seems strange to have them messing to me. (in CS4). and if it's simply not possible.. is there an easy way to convert the shape to a regular vector type shape for more editing?
You need to ungroup (Modify > Ungroup) the autoshape to enable that function.