Hi there,
You can tell WPSP to ignore the more tag like this:
add_filter( 'wpsp_more_tag', '__return_empty_string' );
For the image title, try this:
add_filter( 'wpsp_image_title', '__return_empty_string' );
Lastly, try this for the padding:
.wpsp-polaroid .wp-show-posts-entry-header {
margin-bottom: 0;
}Let me know 🙂