I ran into this a while back when migrating to a new PC under C7. I had a ton of pics (very hard to do with digital content 
) and copied them to the proper directory on the new computer. None of them were visible in the TP browser. It seems the only way to get an image into the user tab is to use the Import function in the browser. Doing that puts the image into the proper folder & also makes it visible in the user tab. But you can only do that one image at a time, so it is useless for importing a large number of pics.