Problem: Files in the PSE Organizer may be opened with PS (Edit>Edit with Photoshop or Ctrl-H), however, Unlike the PSE editor, PS has no option to include an edited file in the PSE Organizer, which some of us use in preference to Adobe Bridge.
Solution: In the PSE Organizer, go to File>Watch Folders and Add the folder in which you save your PS files.
Result: As soon as you close the file in PS, it will appear in the Organizer, ready and waiting for you to, for example, apply a Keyword Tag.