requirements:
jython
version 2.1
jdbc drivers:
oracle
http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/index.html
postgresql
http://jdbc.postgresql.org/download.html
mssql and sybase
http://jtds.sourceforge.net
mysql
http://dev.mysql.com/downloads/connector/j/3.1.html
examples of configuration for various databases are provided in included config.xml file.