OT - DirectX8 how do I add multichannel sound

[ar81]

I got to find how to add sound to a program using DirectX8.
Basically you initialize the device at the very beginning, load the sample into buffer and then play the contents of the
buffer.
But I do not get to have multichannel sound.
What is the logic to do so?  Is it that I have to concatenate samples? or is there a way to access a different buffer?
I code in Visual Basic 5.

Any help would be appreciated.

[ar81]

Found part of the solution here
http://msdn2.microsoft.com/en-us/library/bb219704(VS.85).aspx
Now it seems I need to figure out how to create secondary buffers.