I've used Eclipse Helios with Hibernate Tools installed. Everything worked fine. Now I've changed to Eclipse Kepler. Looks like it has the Hibernate Tools also installed as I'm able to change to Hibernate perspective. When I'm trying to import my old project Hibernate Configurations(as shown here). The option to import Hibernate Configuration file does not appear. Here is the image of how my import dialog looks like:
I think you can achieve what you need in this way too:
Hope this will be useful!