Wait for all images to be loaded.
Login to your cpanel and click on "MySQL" databases icon or link.
You will find a field like the one below. Insert the name of your new database (you can use any name you want but it must be the SAME with the one you inserted in the mysql.ini file.) Then click Add Db to create a new database. If you do not want to create a new database then you can use an existing one for inserting the tables needed. All the new tables that will be added start with the prefix dpg_ so you'll not mess them with any existing tables in your database.
See below
Once you have created your database, login to your phpMyAdmin administration panel - there is always a link in your cpanel on the same section with the link/icon to "MySQL" databases.
Once you're in the phpMyAdmin administration panel select the database name you created (or the existing database you're going to use) from the drop-down menu on the left. Study the image below.
Then click the "SQL" link.
Copy the code you will find in the "db.sql" file and paste it in the textarea.
Study the image below.
Click Go.
An alert window will open - Click OK.
Once your MySQL command will be executed you will see a screen like this one:
You're done.