(2) Since this module take the first slot in ALSA (card0) and puts my real audio card into the second (card1), are do we set by default the second card instead of the first one. (ALSA)
are you asking what to do ?
tipaul spelled it out perfectly. "just insert the line snd-intel8x0m at the end of the file: /etc/hotplug/blacklist..."
which, by the way, i was just posting to say that i just installed slack 10.0 on a dell c610 laptop, and the above instruction worked to get my sound working.
thanks !!!