Plesk and Windows Server 2003

Alright so I downloaded and copied the folder to my site. I created the MySQL database, edited the config file, and followed all the steps for setup to a “T” so now when I attempt to visit the setup page which is located here: https://www.designconnection.com/blog/wp-admin/install.php it requests a user name and password. On a whim I tried every single user name and password combination I’ve got associated with the server, no prevail. This made me question if I had the IUSR account active and if it had any privileges it did and it does. Then I thought maybe it was something funny with IIS, IIS has the following permissions assigned to the folder: script source access, read, and directory browsing. There is no security requiring a user name and password enable in Plesk either. Please give me a hand, it’ll be greatly appreciated.