After installing the latest build of the extensions, close Extension manager and Dreamweaver and look in this directory:
Mac OSX;
-DWCS3
--Hard disk: Users: <Your User Name>: Library: Application Support: Adobe: Dreamweaver 9: Configuration: JSExtensions
-DWCS4
--Hard disk: Users: <Your User Name>: Library: Application Support: Adobe: Dreamweaver CS4: en_US: Configuration: JSExtensions
Delete the WACSS_Bundle.bundle file for CSS Sculptor and WASAP_Bundle.bundle file and run the product again. Let me know how that works for you.