This is a little off topic, but when pcibios chokes up a message like "Warning, unable to fix up PCI interrupt routing" it's a good idea to disable it and use acpi for acpiprt(4) support.
Now, on to your question, you'll need to create a few device nodes.
Here's how:
Code:
$ cd /dev
$ sudo MAKEDEV audio1
$ sudo rm {audio,audioctl,mixer,sound}
$ sudo ln -s audio1 audio
$ sudo ln -s audioctl1 audioctl
$ sudo ln -s sound1 sound
$ sudo ln -s mixer1 mixer
Afterwards, Post the output of audioctl -a and mixerctl -a here.
Hope this helps you my friend.