This documentation is not using the current rendering mechanism and is probably outdated. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.
With TYPO3 4.5 the backend forms were reconfigured. Items that belonged together were grouped and the styling was more uniform.
Divs are now turned into tabs by default and the palettes in the core are forced to be expanded all the time. Palettes are now used only to group fields.