attachment page

@effess:
1. You can add the following css in “Appearance => Theme Options => Custom CSS” box:

.single-attachment .entry-header .entry-title,
.single-attachment .entry-meta { display: none; }

2. Not sure what you mean. Maybe you can check this cool gallery demo http://catchthemes.com/demo/catch-kathmandu/gallery/ where we use JetPack plugin “Carousel and Tiled Galleries” module

Please post in your site URL so that I can understand your requirement better.

@effess: If you want to remove that then you need to build child theme. For child theme refer to http://catchthemes.com/blog/create-child-theme-wordpress/ where you can even download sample child theme. Then add the following code in your child theme functions.php file.

function catchkathmandu_unhook_functions() {
	remove_filter( 'attachment_link', 'catchkathmandu_enhanced_image_navigation', 10, 2 );
}
add_action( 'init','catchkathmandu_unhook_functions');