I can't seem to get the photo library in my iPhone 4S to sync with the iPad mini. The only photos that show up are the ones in the photo stream... These are recents only. Does anyone know how to make the entire library available in both?
You can only share your photstream. Every new photo you take will automatically go to your photo stream, but you can't force a "sync" with your old photos.
You could sync your photos to a computer then install the iCloud software on it. Once done copy the photos you want into the uploads folder and it will drop them into your stream as though they were new photos (ive done this to get photos from my blackberry phone into icloud without any hassle).
If its a one off upload of old photos you should only need to do it the once and you're set, all "new" photos should go into the stream as normal