We require that you have Extension Manager 6.0.1 or above. Please look at this page to manually update your version of extension manager and then restart your point product and the Adobe exchange panel.
and search for
Extension Manager 6.0.2 update
August 13, 2012
This update provides a number of fixes including a symbolic link issue on Mac OS X, for more information please visit the Extension Manager 6.0.2 release notes here.
Hope this resolves the problem,
Adobe Exchange team