http://code.google.com/p/flex-ui-selenium/

FlexUISelenium is an extension to the Selenium RC client driver that enables the Selenium RC client drivers to interact (and test) the Flex UI components and methods of the Flex application.
  1. [2011/02/09] [Free] New Selenium 2.0 released *1 by Taqtislas (1919)
  2. [2011/05/11] List of selenium tool which support it *4 by aj jain (1754)
  3. [2011/01/16] Selenium Document *1 by Commander (2366)
  4. [2011/05/24] How to Install selenium for diffrent2 OS? *1 by aj jain (1610)
  5. [2010/07/04] [Ebook] Selenium User’s Guide *11 by jeevan (13922)