jdk1.5.0_12
jre1.5.0_12
Hibernate 3.2.2
Hibernate tools 3.2.0
Eclipse SDK
Version: 3.2.2
Build id: M20070212-1330

I have used Hibernate tool for Eclipse to generate hibernate.cfg.xml with successfull, despite that the only driver to MySQL that appear as option is org.gjt.mm.mysql.Driver, but I write manually com.mysql.jdbc.Driver. When the hibernate.cfg.xml is already generated, I go to Hibernate Code Generation option, the problem is in this step, because I'm not able to finish the process, an error occur when I click in refresh, a window "Lazy tree error" with the messages:

org.hibernate.console.HibernateConsoleRuntimeException: Problems while loading database driverclass (com.mysql.jdbc.Driver)
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

I yet add mysql-connector- java-5.0.6-bin.jar in enviroments variables and in the project and path directory but I continue receiving the errors