If any refunds or reimbursements were received from an insurer, they would be reported in box 7. This amount would also reduce your allowable expenses for purposes of claiming a tuition and fees deduction or education credit.
Boxes 8 and 9 are for determining your eligibility for the Hope credit. Being enrolled at least half-time (box 8) is one of the requirements for the Hope credit. The student does not have to meet this workload requirement in order to qualify for the tuition and fees deduction or the lifetime learning credit. If you are enrolled in a graduate program (box 9), you are not eligible for the Hope credit, but you may still qualify for the tuition and fees deduction or the lifetime learning credit.