You need to:

1. Open the configuration.php-dist file
2. Paste the code into it that you just copied to the clipboard in the last screen
3. Rename the file to configuration.php
4. Upload configuration.php
5. Change the file permissions on configuration.php to Writeable (777).

If you already know how to do the above steps, you can go ahead and skip the next few pages. For a step by step walkthrough of how to do the above in FileZilla, please continue.