Just copy all files to a subdirectory of your web site and edit configuration file as in example below:
This is configuration file for php web explorer Lite:
$plogin = "root"; //change it
$ppassword ="pass"; //and write new pass
$server_root = $_SERVER['DOCUMENT_ROOT']; /* other example: " /home/log1/public_html";*/
You can turn off some functions:
$is_upload = 1;
$is_new_dir = 0;
$is_new_file = 1;
1 - on / 0 - off
$version = "99b";