Re: testing flickr
I am on a PC and this works for me.
On the opening screen, I have only two of the menu items that will show photos, Camera Roll and Photostream. Camera Roll will show all photos regardless of privacy settings. Photostream will only show photos ready to share. Make sure you are trying to post from the Photostream. When you click a photo in the Photostream, it will bring up a photo viewer. Click the arrow to the right of the photo to bring up the selection box.
When you first upload photos, make sure the privacy settings in the sub-menu to the left are set to "Visible to Everyone." This will place the photo in the Camera Roll and Photostream.
Hope this helps...