There seems to be a lot of information that might be relevant to your query so please bear with me here...
The default galleryStyle for a WP-SimpleViewer is 'COMPACT' which places the captions in an overlay on top of the main image.
Try setting galleryStyle="MODERN" and you will notice that the captions are no longer on top of the main image but underneath the thumbnails.
In the 'FOREST' Pro Demo Gallery, the captions are positioned by setting the option captionPosition="RIGHT".
Please see the 'Caption Options' section of the SimpleViewer-Pro Config Options page for all caption options: http://simpleviewer.net/simpleviewer/pr … ml#caption
If you wish greater control over the size and position of the caption area than the preconfigured options give, you could use a Fixed Layout which would allow you to position the caption area relative to the top left corner of the stage using captionX and captionY. The size of the caption area would be positioned using captionWidth and captionHeight .
The 'Fixed Layout' options can be found here: http://simpleviewer.net/simpleviewer/pr … html#fixed
You may also wish to set floatCaption="FALSE" in order for the captionHeight to be counted in stage layouts (otherwise, captions may spill off the edge of the browser window if it is not large enough).
Essentially, I want to have the slideshow with thumbnails underneath, yet take the caption and place it in a WordPress sidebar (outside of the slideshow itself) (very similar to the Pro "Forest" theme)
In the 'FOREST' Pro Demo Gallery, the captions are still within the gallery itself (though not overlaid on top of the main image). In order to use the captions elsewhere on a page, you would need to use the SimpleViewer-Pro API: http://simpleviewer.net/simpleviewer/pr … t/api.html
In order to use Pro Options within WP-SimpleViewer:
(1) Upgrade WP-SimpleViewer from SimpleViewer-Standard to SimpleViewer-Pro following these instructions: http://simpleviewer.net/simpleviewer/su … iewer/#pro
(2) Enter Pro Options into the 'Pro Options' text area in the form floatCaption="FALSE"
The 'SimpleViewer-Pro Layout Guide' may also come in useful: http://simpleviewer.net/simpleviewer/pr … guide.html
SimpleViewer Support Team.