This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
It's not quite that simple. There is a Hibernate Plugin that you must compile and use. Sadly, the documentation for this is horrible, so you will be left with a lot more questions. Normally, I wouldn't do this, but I believe you would have better luck at the Hibernate Forums than here only because there aren't too many people at the Ranch who have used Hibernate. There are many more JDO fans here.