Instagram, popular photo sharing iPhone app, doesn’t upload the same photo into your Facebook album. If you would like to save your Instagram photos in Facebook, I recommend instafb.com.
Instafb.com links your Facebook account and Instagram account together. Instafb.com will copy maximum 50 photos into Facebook album you created at initial setup. Future photos posted in your Instagram account will be copied into the fb album (even you don’t share the photo to Facebook in Instagram app).
Instead of posting a simple Instagram message on your wall, now you can save a copy of the photo in Facebook album and tag friends in the photo. Nice!
Info: Instagram is a popular photo sharing application for iPhone. It allows you to take a picture, add various colour filter then share to many social sites: Facebook, Twitter, Flickr, Foursquare, etc.