Every tiem I try and sue the panel within CS6 to download an item, I get an error message saying "You must update Adobe Extension Manager to install this item. Would you like to update Extension Manager now?" and I click yes, and a screen come up saying everything is up to date as of 1 minute ago. Yet, when I try and download I get the same message again.
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
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