Probably messed this up :) This script was the only user of the tab-div etc global CSS, using it for tabbed navigation. I've modified it to use the standard navigation CSS, but haven't tested it because it's unsupported and despite some tries I couldn't get it to work correctly (missing columns in the data model among other things). I'm not sure that Lars Pind ever finished this, or if only an unfinished version got committed, or if the unfinished part wasn't needed by his client, or what. However, the package is unsupported and requires the unsupported contrib package bcms so I'm not going to loose too much sleep over whether or not my css change works.