OpenCart Modifications

Link to website: [login to view URL] I require the following 4 changes to the front end of this OpenCart website: 1) The website looks untidy when viewed in a smaller resolution. For example, the 3 orange buttons at the top need to be inline and central, and the logo needs to be viewable on a smart phone (which it currently is not). Please see screenshots ‘point 1a’ and ‘point 1b’ to illustrate this. Also, the text top left on the header (‘point 1c’ attached) is overlapping the logo. 2) Remove the menu on the left of the homepage banner (so that the homepage banner now fills the whole width), and move the menu items that were on the left of the banner to the main menu (See ‘point 2’ visual attached. 3) Remove the grey box on the left under the banner (this looks like a login box but it is just a jpeg!) and then centralise the 4 product categories on homepage. Please the 4 banners payment banners under the categories (see ‘point 3’ visual attached). 4) Remove blank space at the bottom of the website (see ‘point 4’ visual attached).