Not sure what 'iwidgets' is but the rest is ALSA. First, do 'locate' to make sure they didn't fall out of the proper paths and then go here, I guess: http://www.alsa-project.org/
- if the stuff isn't on your RH CDs.
Beyond that, I've never run Red Hat or wine. (Y'know, there's that distro field in your profile you can fill out and not have to specify that in posts.)