Customize News Aggregation Website Script

I just purchased this script for a news aggregation website that will be importing news feed from multiple rss feeds into a post. I want to customize the script a little by changing the lay out and also add some new features and functions to it.this is what the site look like now http://goo.gl/G1nTl and i would eventually like the site to look like http://bit.ly/NLTPuO My current site already contain similar functionality but some customization is still needed in the home page, the admin pane...