This is intended as information only and you should seek counsel for specific legal advice. It may seem counterintuitive, but, before looking at the legalities, I suggest you read Facebook's policies. In them they discuss what permissions one grants when posting a picturer and may also discuss a person's right to re-post. In general;, if the person posted and made it available to the general Public, the expectation seems to me to be that it could be shared (isn;t that part of the purpose of social media?). But NEVER for a commercial purpose without permission. I would again, start with Facebook policies and, if you still have concerns, consult with a CA attorney. If you lost access to the photo, the poster may have removed it. I think it unlikely that you would get a claim unless you were doing something inappropriate with the photo (reposting with defamatory remarks for example). Good luck!
The above is offered and intended for informational purposes only and should not be construed as legal advice. You should consult directly with an attorney in the jurisdiction in which you reside for individual advice regarding your individual situation. Nothing contained herein is intended to be nor should it be construed as advertising attorney services.
Keep involving yourself in this matter and you could face an expensive lawsuit, win or lose. Quit posting pictures.
We do not have a client/attorney relationship until you make an appointment, we discuss your case face to face, I accept a retainer, and we explictly agree to enter into representation.
I think I have responded to this question before, or at least one very similar.
Generally speaking, Facebook and other social media sites are not considered private. Once someone posts a picture on the internet, it loses any claim to privacy or confidentiality.
But, you should not be using pictures that belong to other people. Doing so could eventually lead to you being accused of some wrong doing.
Personally, I recommend that you spend less time on the internet and more time learning correct grammar and spelling.
The following case may be illustrative of what you are asking: http://scholar.google.com/scholar_case?case=6507115788111795927&q=facebook+%22search+warrant%22&hl=en&scisbd=2&as_sdt=2,11