In case you don't run Software Update Regularly:
Via Software Update, I've installed Authoring Support 1.1. Now my new Que Fire 16x10x40 works fully "out of the box" with iTunes and Disk Burner (Finder 9.1.1) without any 4th-party "Helper" support! However, Roxio's Toast 5 (Ti) Firewire Support (1.0.8) is still standing in for Apple's Firewire Authroing Support (1.1).
Hope to see this posted on the MacNN front page shortly!