Install latest prestashop into our current website

Hi Guys, We need prestashop installed. We already have a website that has a home page and a contact page build. We simply need prestashop installed on the back end and then have the links from our home page/contact page linked to the correct pages on the prestashop. The prestashop needs to fit seemleselly into our current website or maybe it can be built into a frame so when people login in they will see just the prestashop in the middle of the site and the site we have build will remain around it. The site we have already is: [login to view URL] So basically we need prestashop integrated into our current website and the colours of prestashop changed so it will match our current website theme. For example, on our homage you can see a link in footer called 'about" so we simply need to have you create a blank CMS page in the prestashop and link that to it.. we can add our own content as we know prestashop features. Full payment is made when project completed. Also, I'm looking to get this project done within 1 week MAX. Lowest bids are normally what we go for, and someone who has not too many projects running at this time so they can concentrate on our projects and get it done asap. Once this is done we will lots more work on the same site, so please we try make good relationship and get professional job done quick. Best regards and Thanks for looking. ;)