mac audio problem

To any Mac users out there: If you use System 9.2.1, please email me or comment on this message. I installed the Apple firmware update for G4s today, and my audio no longer works. It appears, from discussions around the web, that this is a fairly common problem for System 9.1 users with this (irreversible!) firmware update, and it’s only solvable by installing a small part of the 9.2.1 software. Unfortunately, that small part is only available online as part of the whole 82MB download, and I’d like to some day get married and have children, not spend the rest of my life tethered to a 56K modem. So please, help out if you can.
Oh, yeah: To any Mac users out there: If you’re NOT using System 9.2.1, avoid the firmware update Apple released today.
Update: The impossibly nice folks at xlr8yourmac have hooked me up. They rock. Please consider naming your first-born child something like John Xlr8yourmac Smith.