OK, first let me say that I typically do NOT recommend updating alsa, unless one has a good reason. Just saying one wants the latest and greatest, is in the case of alsa for 11.1, not a sufficient reason.
But I’ll assume you have a good reason ( … maybe I recommended it in another thread? … I can’t recall, and I’m in a rush with no time to search … ) … I assume you would have referenced the other thread if there was one ? Right ? I am surprised NOT to see alsa-plugins-pulse on your RPM list, so I am pretty certain you are not telling me something, and so I will make no assertions as to whether your alsa update will work.
Ok, reference your question, the reference for updating is here (and note in YOUR CASE this is just in reply to your question, but not intended to give guidance for an audio problem) : Alsa-update - openSUSE
For your kernel and your alsa rpms, the six commands (to be sent with root permissions, in sequence, one at a time, with your PC connected to the internet) are:
zypper ar http://download.opensuse.org/repositories/multimedia:/audio/openSUSE_11.1/ multimedia