You should have 14 different paths. That is, 14 rows of 0's and 1's pasted from Pathfind into your spreadsheet.
2b. The normal completion time:
The critical path:
Check off the activities that are in your critical path.
3b. The completion time that gives you the least cost:
3c. The total or net cost of the project at the most advantageous speed.
(Add your penalty, if any, or subtract your bonus, if any, from your cost
of doing the project to get the total or net cost.)
3d. The activities that are shortened from their normal times to meet
your optimal schedule:
3e. The critical activities -- the activities in the critical path(s):