I configured eclipse3.1.0 with hibernate-tools-3.1.0.alpha5. There is 4 items in FILE->NEW->OTHER menu, these are:
1) Hibernate Artifact Generation
2) Hibernate Configuration File(cfg.xml)
3) Hibernate Console Configuration
4) Hibernate Reverse Engineering File(revenge.xml)

I can do following job: 2) new cfg.xml Configuration File, 3)new Console Configuration, 4)new Reverse Engineering File(revenge.xml), and with 1)Artifact Generation to generate mapping xml and java POJO code.

When I hit [Open Perspective] -> [OTHER] -> [Hibernate Console],
the console's name appears. After I create a sessionFactory with right mouse click and expend the console, there are only 3 items in it:
Configuration,Session factory and Database, I can browse the database but there is no "Mapped Entities" and "HQL Editor View".

What's wrong with me ?

My environment is
Windows XP
jdk1.5
Hibernate version: 3.1.0M6 (and MyEclipse 4.00GA)

expand the configuration and sessionfactory and you should see what normally is under "mapped entitities" (right now they have similar functionallity...but their underlying representations are different...before final one of them will probably be removed or moved to another view)

HQL Editor view is replaced by the HQL Editor (as mentioined in new and noteworthy) and are accessed by clicking the hql editor icon when a configuration is selected.

What do you do if the HQL icon is grayed out. It seems to be impossible for me to open the HQL Editor. I'm not showing any errors in the event log.

you need to click the Configuration node....will be improved

That worked. I thought I had clicked everywhere but didn't try clicking on the overall console configuration node.

Thanks.