I took the test drive with CS5, decided to lose it and continue using CS4 and now it will not allow me to administer the site. I tried uninstalling both programs and running the creative suite cleaner to no avail. Once I reinstalled CS4 I got the same error message. Any ideas?
Once you had Administer in the latest version, you can't Administer in older version of Contribute. Please refer to the blog post, http://blogs.adobe.com/contribute/2009/09/compatibilty_transition_mode.html.
If you like to continue with older version of Contribute, then you have to remove the Administration using the CS5 and reconnect to the site using CS4 and enable Administration.
Note:- All the Adminitration settings, role settings and roles will be lost.