I have completed the installation of the styles for the new Comm Center. Right now the default it Blue Fox but I may soon change it to BlissfullySimple. I suggest you have a look at all of them and pick the one you like. The Fixed variants have been taken offline to avoid confusion. It's very easy to switch temporarily, just look for the style chooser at the bottom of any page. You can make your choice permanent (even if you log in from a different place) by setting it in Settings, My Account, General Settings, Forum Skin (down at the bottom) and Save.