Ok, after 1/2 day of screwing with this, I got it running... mostly.
I had to find and copy the Core Fonts, and copy them to the install folder. Then I had to run the installer once for EVERY font. It would install the first one in the list, then say it was trying to d/l the next one and failed. I'd launch again, and it would find the 2nd, but not the 3rd. Carry this on for 11 font packages.
Next up, I had to find the XML Parser, and d/l both the MSI and EXEs that are available. These would not launch with the OneNote installer, so I ended up launching each one as an unsupported app in Crossover. Finally, after all 13 files were installed, OneNote's installer went all the way through.
Now, however, I can't seem to connect to any of my network-shared notebooks... I can browse to the locations, but the Open dialog simply doesn't see any of the actual files, just the containing folders. All other standard functions within the UI seem to work. So, it appears I have to create new notebooks locally and then upload them from time to time to maintain the server copy for use w/ other machines.
EDIT
See this note for a comment on the network drive issue:
http://www.codeweavers.com/compatibility/browse/name/?forum=1;app_id=2865;mhl=44533;msg=44533#msg44533
-Scott