Create a Wordpress Template

TASK 1 I need my site to scroll horizontal like this: CODE: [login to view URL] DEMO: [login to view URL] It is a Wordpress site and only needs to happen on portfolio pages. MY SITE: [login to view URL] Its only a case of adding in the existing code (above) into the site but I'm not sure where to add it. The <a> on click moves to the next image. This can be removed if need be to get TASK 2 working. TASK 2 The developer of this theme has not made it possible to add videos to the "portfolio page". I will need to add playable videos (on click) through Wordpress.