AKAI MPD32, no sound coming out?

I'm sorry if I'm posting this in the wrong section. I'm new to Sonar and I have my MPD32 hooked up USB. I followed the steps in the video on YouTube "Sonar X1 MIDI for Beginners" and every time I hit a pad the meter shoots up, so the pads are recognized, but there's still no sound output. I've tried a few different outputs, patches, etc. I don't know if either of these details make any difference, but I am hooked up via USB, and I'm using the demo version of Sonar Artist.

Which synth are you trying to drive with it?
 
Make sure you have Input Echo enabled on the MIDI track

OK,  If the AKAI MPD32 is connected and the midi box is cheeked under Preferences > Midi >  Devices > Inputs,   do following
 
Go to  Insert > Softsynth > choose a softsynth, preferably a keyboard if possible.
You will now see the Option Dialogue Box
 
Select the following  3 items when the option dialogue box appears:
1. Simple instrument track.
2. Synth Property Page
3.  Synth View rack
OK
 

 
When the instrument track appears in Sonar and the instrument GUI appears, select a Keyboard tone that you want to hear for the piano.  Now click on the track number in which the keyboard is on and press the MPD32 buttons, you should now hear the keyboard.  
 
When working with Drums its the same thing basically.

Accumulus
I'm sorry if I'm posting this in the wrong section. I'm new to Sonar and I have my MPD32 hooked up USB. I followed the steps in the video on YouTube "Sonar X1 MIDI for Beginners" and every time I hit a pad the meter shoots up, so the pads are recognized, but there's still no sound output. I've tried a few different outputs, patches, etc. I don't know if either of these details make any difference, but I am hooked up via USB, and I'm using the demo version of Sonar Artist.

The MPD32 is a controller, not an audio device so it won't make any sound, only trigger a soft synth that generates sound.