Hello JeeBee,
It looks like everything is now configured properly but you might need to update your kernel. The reason I suggest this is because you have the ALC883 chipset and a somewhat recent [url=http://lkml.org/lkml/2006/6/29/58%5Dletter%5B/url] to the Linux Kernel Mailing List (LKML) suggests that a patch was developed to add/fix ALSA support for this chipset on June 29. A more recent version of the kernel should include these changes.
Type
$ rpm -qa kernel
to see what versions you have.