Can't find Upfront dashboard after installing

I've just followed WPMU instructions to install the Spirit theme and edited pretty permalinks. The Upfront link appeared in my admin bar but clicking on it just takes me to the homepage and appended "?editmode=true" to the URL. I get the same thing when I click on "Appearance/Themes/Customize. Also nothing pops up when I hover over various elements. Where did I go wrong?