Issue: After installing the admin system, when I point my brower to the setup page install.php it shows a blank page

The most likely reason for this is because you have not installed IonCube.

You can check your PHP info by opening the XAMP control panel (Windows servers) to see what PHP extensions you are running.

You need to follow the steps to get IonCube running on your server before trying to run the installation.  The IonCube vc9 x86 loader is supported.