Builder and Confluence 2.2
Initial testing shows some issues with the Builder theme when used with Confluence 2.2...
Atlassian recently provided a developer release of Confluence 2.2 and we've been busy checking our plugins, in particular our Builder theme.
We've found that the theme works as expected on normal spaces, however there are some issues with user spaces. Confluence 2.2 gives each user their own personal space within the user profile and the theme can be selected for that space.
Until further notice, we reccommend that users do NOT select the Builder theme in their user space as they will loose the navigation controls to edit their profile, etc.
Resolving this issue will be a fairly straightforward task, but we just wanted to forwarn you in case Atlassian publically release Confluence 2.2 before we get the next version of Builder out 
Stay tuned to our newsroom as we'll be making further announcements soon.