Unfortunately Me :(.
Due to a few customers reporting that after updating their Family Browser to the latest build, they had lost the text on the non selected tabs. This was happening to just some computers that were using a slightly larger font size therefore the text would not display.
I have since build a new version that now fixes this issue by making the tabs slightly wider and that can be found in the downloads section.
Thank you for reporting this and have a fantastic New Year.
See you in 2012.