If you have any questions about Hibernate Spatial, the best place to look are the mailing lists. The list Hibernatespatial-users is intended for users of Hibernate, and is the most active. To post messages to the list, you will need to register.
The mailing list is archived on Nabble (goto forum). The archive is read-only, so posting messages there won't work.
To submit bug reports, request new features, or suggest improvements you should use the issue management system.