Cool tutorial.
Keep in mind they are some example settings in .reg files that you can load. Check the Cake install DVD: \\Utilities\External Encoder Profiles
You should see some .reg files you can import:
LAME MP3 320 CBR.reg
LAME MP3 High Quality Stereo.reg
LAME MP3 Low Quality Mono Voice.reg
LAME MP3 Medium Quality Joint Stereo.reg
LAME MP3 Very High Quality Stereo.reg
Importing these will fill in all the blanks, along with some switch options you may not think of.
There are some in there for FLAC, Monkey's and Ogg Vorbis as well. I assume these are some settings the Cake folks came up with.