Is this the work flow that you followed, adding in 1, 2, 3 order?
If so, you can see that there is a little connector that couples the sound clip to the title. So when you delete the title that will also delete the sound clip that is coupled to it.
Also, you have the title in the main timeline. Instead, the photo or video clip should be in the main timeline and the title then placed above it. Otherwise the title will not show up on the images. What you can do is slide the image off of the title and place it down on the main timeline.
Then, with your cursor, push the title clip upward and the image clip will then slide under it. You should be good to go.
-- Rich