CAN YOU make some tutorials about how to install your ask and answer script?
The "tutorial" is the readme file. Please read it, it'll tell you how to install the script. But in summary:
1. Create a MySQL database (ask your host how to do that if you don't know) or use an existing one.
2. Put the MySQL details into config.php.
3. Upload everything to your server.
4. Go to yoursite/install.php in your browser, that will do the rest.