The former post is one reason for not seeing images. There are several plug-ins, including File Toolbox which can capture the filename, path, size, date, etc automatically. Troi File is the most used plug-in for this but it is not free. Linking is also good advise, but it has drawbacks. I generally allow users to import, paste, or otherwise place data directly into container fields and them I use ExportFM to control how, when, and where I save the images. Like the earlier author mentioned. It needs to be in a location that everyone has access rights to. It is common to create a share point for such items.
Hope this helps