Well, if you've lost them, the first thing to do is stop using the system.
However, I'm really not sure what your issue is from what you've posted. Could you please try re-articulating it? Were you working in a specific program and can't find them, or did you lose them on your hard drive? The audio manager shouldn't have anything to do with photographs, hence my confusion.
Please elaborate if you can, and if I can't, at least someone else would be able to help. Until we've determined what happened, we can't make an effective recommendation - except to stop using the system, as if it was a hard drive issue, continued use will compound the problems of getting your photos back.