In SimpleViewer Standard, the captions are displayed beneath the thumbnails (if they are positioned LEFT or RIGHT).
If you have a single column of thumbnails, then the width available for the captions becomes very narrow.
With SimpleViewer Pro, you can position the captions with the captionPosition option.
http://simpleviewer.net/simpleviewer/pr … ml#caption
With SimpleViewer Pro, you also have the option to use a Fixed Layout which would allow you to give absolute fixed positions to stage elements.
http://simpleviewer.net/simpleviewer/pr … html#fixed
An alternative might be for you to have a single row of thumbnails beneath the main image in which case the captions would appear in an overlay over the main image when the user hovers over the image.
SimpleViewer Support Team.