C.M.
At the very least you may be eligible for the Michigan State Homestead Property Tax Refund; if you rent or are in a mobile home park, you may still be eligible. You should be able to download the form from michigan.gov, fill in the blanks, and see for yourself if you are eligible. You may be able to go back two years, plus the current year (2007) if you have not claimed this in the past. Best wishes.