I'm using PSE V10 and have a 'wish list' item for suggested improvements to the program.
A feature that would be extremely valuable to many users would be the ability to auto stack photos where there are the RAW + JPG images present in the Catalog. The JPG would end up on top of the stack.
This can be done manually but is tedious when there are many photos to deal with. Failing an automatic feature a single action shortcut to access the 'Stack | Stack selected photos' command would be useful.
a forum discussion on this topic is here: http://forums.adobe.com/message/4585792#4585792