cakephp,mysql website modified for responsive, mobile smartphones, e.g. iPhone, android

We have a website www.vouchoff.com. it is a deal site. similar to groupon and living social. . Need to be able to click into each deal. each deal will have an extra description. . remove verification email from registering. need a way way to verify registered users during registration to stop spam . landing page to a logo, slogan, drop down menu of each deal which will link to the deal, about . when you go to buy now , or value required, Remove "please log in" from deals. can insert amount, and click buy now . this will then take user to registration. when they register, they are successfully purchased the vouchers . on mobile / smartphone , always drop down menu at bottom. can select another voucher. . if you enter text in "value required" , it says please insert intiger , above 50. we need to change this text. . View Deals button in pink on same landing page. (see [login to view URL]) . "value required" style needs to be changed to orange