Hi Andrea,
Your web address for Moodle: http://wisvle/moodle will work once you put the moodle folder into the web root. Because you are using iis, your web root is something like c:\inetpub\www\
You need to put the moodle folder here, and record this in the config file. That way, when you type in the web address, the index.php file in the Moodle folder will answer your browser when you type in http://wisvle/moodle.
According to the config file you attached, you are showing the moodle folder in some other drive (I think it said 'd'). Just move the entire moodle folder into your web root and it should work. Here is my best guess of what your config file should look like:
$CFG->dbtype = 'mysql';
$CFG->dbhost = 'localhost';
$CFG->dbname = 'moodle';
$CFG->dbuser = 'root'; //if you accepted the default
$CFG->dbpass = 'whatever_password_you_chose'; // your database password
$CFG->prefix = 'mdl_';
$CFG->dirroot = 'c:\inetpub\www\moodle'; // This is my best guess.
$CFG->dataroot = 'C:\moodledata'; //you need to create this folder on your c drive and give iis readn and right priveleges to it.
The 'moodle' folder must go into the web root folder, and moodledata can stay on the d drive if you wish, just change the relevant entry in the config file ($CFG->dataroot = 'C:\moodledata', change this to D:\moodledata etc...)
Matt
