Need help with Home Plug in and Audio Manager

[glidersgalore]

Still kinda new at this, but i am learning my way around, so any help will be helpful. And I have searched for the answers, but didn't find them, unless I searched wrong.
Here goes, I just added the HTC Home Plug In, Home Customizer and HTC Audio Manager, but I do I get the music button on the plug on to go the audio manager instead of WMP, and also how do I add songs to the audio manager? All my songs are on my card, and WMP sees them and plays.

Thanks