My theory is Photoshop has a different form of metadata, and that is why Bridge and Photoshop both can read the metadata.  Renderosity must use a different form of metadata, and that is why it doesn't show up. I cannot afford another program at this time to "experiment" with other types, so I guess I'll just upload and not check the box hoping it will show up, because it won't.  Thanks to those who attempted help.

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Art By Charlene
http://www.artbycharlene.net/