Nothing is straight forward on those pages. Superweek must be a horrendously thankless task to organize.

Try this:
http://www.internationalcycling.com/...d/Announce.pdf

Schedule seems a little different each day which leads me to believe that everything will be a cluster when I actually show up. I have a feeling it will go late, and they will run the 4 and the 4/5 fields together. Don't know why 4s would be riding in the 4/5 other than for extra races.

If you go I would suggest using the schedule as a general guide of what to expect.