Another retarded move: I think I fried my fiancée's PBG4 Bluetooth firmware

I applied the Bluetooth firmware update for rev A PowerBook G4 12"s and just today noticed it says "Bluetooth unavailable." Uhoh? I can't even find the update on Apple's site. It says No Info in the System Profiler. The Pref Pane doesn't appear in Prefs either. It's 104.4 with all updates just like my identical model, which didn't have any problems. And her system is plain vanilla. Ideas? Eek. Man I'm gonna get it on this one if she decides to buy a bluetooth mouse or something. Oh man you gotta help me!