I see just a white page when I run install.php

If you see just a white page when you first try to install Sitelok it usually indicates that there is a typo in the settings. Make sure you enter your DB details inside the quotes so that it looks like this.
$DbHost='localhost';       // Database host
$DbName='sitelok';         // Database name
$DbUser='username';        // Database username
$DbPassword='password';    // Database user password
Also make sure that the quotes around the settings are the normal ' character. Some editors try to use smart quotes (that look curly or angled) instead of the simple ' character. These look great in print but don't work on webpages. Most editors allow you to disable smart quotes
single smart quote example