[Plugin: NEXTgen Gallery] Captions & Button in HighSlide?

Hi all,

I studied several postings and blogs now but couldn’t find an answer to a rather easy question: I’m using NGG 1.1.0beta and want to use the HighSlide effect with my gallery images.
Downloaded everything (HighSlide 4, btw) but can’t get captions (and prev/next buttons) to work in the big versions of the images.

NGG 1.1.0beta brings a new feature for printing captions below the *thumbnails* but I don’t know where to switch on (or edit in which file(s)) the HighSlide options.

Is it correct that if I only want to use the HighSlide effect with NGG galleries that I don’t have to donwload and install any “WP-HighSlide” WordPress plugin?

Thanks for any help,
Stefan.