The dTabs Wordpress plugin has been updated to support that major database schema changes introduced in WP 2.3, and the Kubrick Tabs Wordpress theme has been updated to the latest release of the Default theme (1.6) shipped with WP 2.3 so it now supports the new tagging features and Widgets. In addition it now supports the deactivation of dTabs, should the need ever arise 
Kubrick Tabs has been updated to support both Wordpress 2.1 and dTabs 1.
dTabs version 1 has finally been released, changes include the addition of support for dynamic menus and tabs for pages, subcategories, archives, and bookmarks, as well as various minor improvements and bug fixes.
Kubrick Tabs Version 1.1 has been released. This release adds support for custom headers (introduced with WP 2.0.5) and full support for Windows Internet Explorer including IE7.
I’ve started a little progress blog for the development of my attempt at a CubeCart Mod - follow it here.