Help modifying a theme from themeforest

Hey all

I am using the Munich photography theme and need to make a change, in the portfolios the image overlay displays the themes own custom meta fields but I want to switch it out to show the default image title and description

$slide = array(
    'image' => $slide[0],
    'height' => $slide[2],
    'width' => $slide[1],
    'title' => get_post_meta($value, 'munich_gallery_slide_title', true),
    'description' => get_post_meta($value, 'munich_gallery_slide_description', true),
    'video' => get_post_meta($value, 'munich_video_url', true)
);

Any help would be greatly appreciated here, this is really my first time digging into wordpress code so sorry if it is a daft question.

Thanks

Gary