Click on the Music Promos button in the main menu, then you will see all those downloadable promos that you haven't left feedback on yet. Click on one of them and then you can listen to the tracks by clicking on the play button next to it.
In case you don't like the release simply click on the "Not for me" button.
If you like what you hear and want to download any of the tracks you have to complete these four steps:
1. Rate the whole release on a scale of 1 to 5 (one star means you do not like the release at all, and five stars mean it's an awesome release)
2. Leave meaningful feedback. Do not leave useless feedback such as "Thanks" or "Downloaded for xy". We will suspend our promotion service to those persons who leave meaningless feedbacks.
3. Choose your favorite track by clicking on the heart sign next to it.
4. Press the Save button
Then you can download each track individually by clicking on the MP3 button next to it.