I all ways use picasa for photo editing as it have many features and effects to make photo look attractive.
when I have installed this application in my computer it automatically scanned my all photos and displayed to the home screen of the application.
Now you can select any of the photos displayed on screen for editing.
it also give direct links to upload your photo to internet.
Movie making functions are provided in this app. as you can record your video and edit in picasa.
I only use picasa for editing. As it is the best application for photo editing.