How do I open my downloaded tracks with iTunes?

In order to get the music into you will first need to download the tracks to your computer. Here is a step by step guide.

Create a new folder on your desktop.
Download each track into the folder. Depending on your internet connection this may take between 5-20 minutes.
Open iTunes
Go the menu at the top under FILE
Select "Add folder to Library…"
When prompted, find/select the folder you created on your desktop.
The albums should now appear in your iTunes library.