If I remember correctly, YAWP can be found in the widgets under KDE. I used to have it in use but haven't bothered lately.
Assuming you are using KDE, right click on the panel at the bottom of the screen > unlock widgets (if it is locked) > panel options > panel settings. Click on Add Widgets and then drag the little bar, at the bottom left of the screen, to the right. If YAWP is installed on your machine, it should appear right towards the end. You can then click on it to make it usable.