Download Eclipse from eclipse-jee-ganymede-SR2-win32 eclipse home site
Down load eclipse Blackberry plugging eJDE-4_6_1_27_Component from
Then update eclipse IDE to develop BlackBerry Software. Use the following instructions.
Unzip eclipse source. Then run eclipse.exe
Then go to help > Software Updates you will see following window
Then Click on add site button. You will see following window
Click on archive and point to the Blackberry eclipse plugging and select it.
Then click on selected item and click install.
At the end you may need to restart the eclipse.
Congratulations now you are ready to develop BlackBerry Applications. Happy Coding :)