There are two options as indicated above.
Blackberry way: you download the full plugin (the name is misleading, as this is a complete eclipse installation, including the plugin) from here .
Eclipse method: you install the 32-bit Java 6 SDK (the 64-bit version is not supported, and Java 7 has problems with the code signing tool), and then download the 32-bit Eclipse (I use version 3.7 "Indigo") and install the plugin from Eclipse (Menu Help â Install New Software, enter the URL "http://www.blackberry.com/go/eclipseupdate/3.6/java" in the "Work with" field, then you need to select the plugin and at least the SDK Blackberry from the list)
If everything works, you should see a blackberry icon in the "About" box.
You should also see the Blackberry perspective (under Window-> Open Perspective), the Blackberry menu item in the "Project" section), and the Blackberry section if you create a new project.
There is no such thing as a Blackberry Tab. Blackberry development tools are integrated with the environment.
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