Jaclin,
If my figures are right it has been 7 day's but with a 25# turkey there just may be some ice crystals inside.
I would look inside the turkey and if you still have some Ice crystals then I'd wash and dry the turkey and bake it right away. You could peel the breast skin back, cut the turkey up and put it in a casserole or pan then cover it with the skin and freeze for thanksgiving. Take out of freezer a couple day's early, refrigerate. Then in 325 -350* oven reheat. Not like fresh but at least you saved the turkey.
If you don't feel safe in doing this, I would buy another turkey .
Hope this give's you an idea what to do.
Good Luck and happy thanksgiving
Leila