I'm guessing you've already found this, but I thought an actual answer might help.
1. Remove the broken pieces from the tractor.
2. Loosen the two guide pins (on frame between front tires)
3. Replace fender on the hood (not the tractor yet)
4. Slide hood back and align fender. Set so hood is seated.
5. Tighten guides
6. Carefully raise hood.
7. Insert and tighten hinge bolts.
I'll update this right after my next installation (waiting for parts to arrive).
Bruce Warner
May 2012