If you would be willing to try them, I have some source rpms of alsa 1.0.11. They are located here
. To build them, open a shell window, and type "tar -jxvf alsa-src-rpms.tar.bz2" to extract them, then "rpmbuild --rebuild alsa-driver-1.0.11-1.src.rpm" to rebuild the drivers. After the build finishes, install with "rpm -ivh alsa-1.0.11-1.<arc>/rpm" (look at the build output for the exact location & filename). Follow the same procedure for the libs & utils (both alsa-lib and alsa-lib-devel need to be installed before building alsa-utils).
Let me know of any problems. Good luck!