Customize few pages from already magento site

I bought magento template and is installed [login to view URL], i bougt a few adonss (installed) like snipess, hot sales,etc and i just need somene to organize and get the site rdy so i just need to add info like brand,model,price,payment,etc and few others customize like tabs. I just want it to be retail agriculture site rdy to be fill with a lot of products(ill do the add). Now i have a site with addons worrth 700usd for nothing and i have no time to learn magento "programing". Improve product page Improve tabs from product page Comparation page Make payment page work Organize it and leave it ready so i just have to ad products [login to view URL] is then site