Changes on website SP

We have website: <[login to view URL]> We want changes: 1) Add scrollbar to thumbnails gallery 2) Change color of horizontal scroll in large image gallery to light grey 3) We want to always show all section names on large image view pages - not just the current section name 4) Remove the intro page (with preloder). Framework of website is Mootools Attachment with examples: <[login to view URL]>