@Theodore:
Homepage Headline
The Buy Now bar is called “Homepage Headline” and you can disable it for change it as per your need from “Appearance => Theme Options => Homepage Settings => Homepage Headline Options”
Featured Slider
The slider image is the demo slider image. You can use slider type from Image Slider, Post Slider, Page Slider and Category Slider as per your need. For that you need to go to “Appearance => Theme Options => Featured Slider => Slider Options” and select the slier type. After that you can follow the instruction mentioned in http://catchthemes.com/theme-instructions/catch-kathmandu-pro/
Video Tutorial For Image Slider and Post Slider:
http://catchthemes.com/blog/videos-blog/video-series-adding-featured-image-slider/
http://catchthemes.com/blog/videos-blog/video-series-adding-featured-post-slider/
Footer Widget
We don’t have any demo item in Footer Widgets. But yes you can add item in Footer Area from “Appearance => Widgets”. I think you wanted to change the demo Homepage Featured Content.
Homepage Featured Content
By default, this featured content is shown with default images and texts. You can either change the image and text or disable it through “Appearance => Theme Options => Homepage Settings => Homepage Featured Content Options” in your WordPress Dashboard.
Important Links for Catch Kathmandu Pro
Theme Instructions: http://catchthemes.com/theme-instructions/catch-kathmandu-pro/
Support Forum: http://catchthemes.com/support-forum/forum/catch-kathmandu-pro-premium/
Blog: http://catchthemes.com/blog/
Changelog: http://catchthemes.com/changelogs/catch-kathmandu-pro-theme/