I’m in the same boat!! This plug-in is terrific!
I’m having the same issue — and i’m trying to access the Image-URL via ‘meta:’ in a post-based slider. My workaround is create a custom field text type that cntains the URL text of the image — but I’d really like to use the wysiwyg image controls.
Accessing it via the Meta tags only returns the image ID.
Did you figure this one out?