Opencart modifications

Hello, I Have a website in opencart version 1.4.9.5 I need to make some small changes and improvements: [login to view URL] the opencart platform to the latest version v1.5.1.3 maintaining all the futures and modules we have in present. [login to view URL] the serach: [login to view URL] [login to view URL] the shoppica theme, to have a big visable search bar to be more intuitive to users [login to view URL] the Theme [login to view URL] we already purchased, only need to be install, so we have 2 alternatives for the theme Shoppica AND Spicylicious also in Spicylicious we need the same search bar as in shoppica 5. I need to check the email module in webpage, because we are not reciving emails from the webpage(maybe the upgrade to the 1.5.1.3 will fix this) [login to view URL] notice that we use in present the contribution [login to view URL] that uses the field "location" to grab external images, we would like to keep this. 7. we would like to have a filter system in product search similar to Magento filters, by brand, by price range, etc Basicly it´s all for now. We need this ass soon as possible Thank you