Cubecart Mod

I have a website on cubecart (V4). I sell digital products (Karaoke tracks)in the form of mp3’s and Videos. What I need I need to add a sample of each track on the website. The skin needs to be modded and there should be a karaoke player on all pages like the home page, category page, product page etc. A link needs to be added of the song sample preview next to the product/track name of “Play Sample”. Whenever this button is pressed the track should start playing in the Karaoke player. The link for these samples should be added in the product page of the admin section. I need it to be something like on the thekaraokechannel.com. I need this as a mod so i can add this on all my websites. These are some basic requirements and the details can be worked out later during the finalization of the project. I am not a technical guy so it is a possibility that I have missed a few things or am not able to explain properly.