375899 joomla module modifications

i need some modifications on this joomla template [login to view URL] 1. the module like "FEATURE NEWS" on the index page is currently static and i want it to become dynamic. i want it to show the most popular article from each section. 2. same for the category pages, example the "WORLD HIGHLGHT" i want to be replaced with the most popular articles from "WORLD" section. 3. the "PHOTO GALLERY" section should randomly show images from a specific directory. there might be some plugins already for this, i didnt search much. For example this one will show random pictures from chosen directory [login to view URL]