GotGarlic
Chef Extraordinaire
Nooo! I got dressed and went out. One of the old sticks has a couple green buds coming out. There is a lot of green down at the bottom of the plant, so it's still alive, but I don't know if it will get any actual flowers.
Like Dawg said, it depends on the variety you have. Some hydrangeas bloom on second-year wood.
You can cut a single branch and take it to your local Cooperative Extension office. A master gardeners or extension agent can identify it for you and give you a handout on how to take care of it. Or, this might help you identify it: http://www.usna.usda.gov/Gardens/faqs/hydrangeafaq2.html