What you can do is manually create an empty text file named config.php (use a notepad or some other simple text editor that can create pure text files)
Copy all the php code you got from the page and paste it in to the text file.
Then you upload the text file to your server inside the folder /global/ with a FTP application.
Copy all the php code you got from the page and paste it in to the text file.
Then you upload the text file to your server inside the folder /global/ with a FTP application.