Roxio recently released an update to Toast Titanium 8, which includes, among other things, TiVo Transfer, the officially-sanctioned application for using the TiVoToGo feature of a Series 2 or Series 3 TiVo with Mac OS X. This application is used to move recorded shows off of your TiVo and onto your Mac, where you can play them back, convert them for viewing on your iPod, or archive them to DVD, etc.
The thing is, when I downloaded the ~175 meg update, and opened the disk image, there were five updated applications, but none of them were the updated TiVo Transfer. WTF?
Turns out you just need to run the main Toast application, and use the Extras menu to activate TiVo Transfer. The updated application will be written to the same directory as Toast.