I have found it useful to use ACR (RAW) in Elements 8 also for jpeg pics. Instead of opening the Edit directly from Elements Organiser, I open the jpeg from within Elements Editor/File/Open As (select the jpeg pic to work on) and then select Camera RAW from the dropdown list. Probably the wrong way to do jpeg edits
but it works for me and is easy to use. The Alt key certainly comes in very useful Rob. After making what I consider to be the best 'RAW' adjustments I then open the file within Editor to finalise framing, size, sharpening etc.