[Help Wordpress] Show image caption in Post Slider rather than post title

I'd like the image caption to show in this slider. I'm using the post option for the slider - right now the text that is showing is the post title. I'd like to show the image title and caption in the slider.

Slider location: http://liberatinglens.org/submit/
Post location: http://liberatinglens.org/photos/

I looked at this thread but wasn't able to fix the problem.
http://help.dimsemenov.com/discussions/royalslider-wordpress/2160-u...

Can you help?
Thanks!

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