When I download the file and import it, only 5 of the 7 entries are mapped. I looked at the FAQs for lab 2b, and it says that I may have skipped an entry on lab 2a, but I looked back at it and they are all there.
Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, uninstall Max's Pitch Package, etc. That can make it worse. There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. But if you can't find it there, post your problem here.
Make sure you post in the right category below & be sure to include a screencap showing the issue!