Cubecart Work - Postage Options / Twitter & Facebook / RSS

Hi, I currently have a e-commerce site running Cubecart V3 Social Networking Work 1. Facebook box where customers can "Like" my business webpage & View the facebook page. 2. Twitter icon which customers can click to follow on twitter Freight Work I also need two additional postage methods added which are flat rate charges International Post - $25 Registered Post - $5 I Need the current "Flat Rate" postage method name changed to "Express" I need instructions on how to change the postage values / fees as required overtime. RSS Feeds I need two info boxes on my website which can accept RSS Feeds I am also open to any other suggestions you can make on for the website. Facebook Business Page I currently have a facebook page for the business and I would like someone to consult on how to make this better.