trial install nowhere to be found


Can someone please give me a hand. I have the trial on my local machine. Everything goes well until I try to run install in my browser. I am getting the index of install and not the installation screen. All pages are there up to the install step. I am following the guide for installing on my local computer,xampp 1.7.3 and myPhpAdmin pages are there, the next step is to run the install, this is where I get the index of / cscart/install and nothing installs.

All help appreciated