At the moment you can use the Workspace Wizard Webpart only on the root site.
Preferably you add the webpart in your template.
Press the button "Edit Page" in the ribbon menu.
Press one of the two buttons.
Select "Collaboration Manager" in the "Categories" list and than choose the "Workspace Wizard WebPart". After that, please push the button "Add".
The WebPart is now placed. To edit it please select the small arrow and click on "Edit Web Part".
The edit form of the WebPart is now displayed.