The default settings here should work for most purposes. If you have more than one domain, you will need to choose which domain to install on using the drop-down menu. The next two boxes let you set the directory and database name which will be created upon installation. In the Site Settings section, you can set the Site Name and Description. You can change these later in the admin panel.
Under Admin Account, enter the admin username, password, and email. Also enter a Real Name (ex - Administrator) that will be displayed and the admin's email. Now click on Install. After a few moments, the software will be installed, and you will see a congratulations screen. There will be a link to view your new site, and a link to the new admin panel.
This concludes this tutorial. You now know how to install the program Textpattern using the auto installer Softaculous.