BlogHer Ad not showing up in sidebar

I recently got accepted to BlogHer and followed their instructions to paste the javascript code into the text box widget on my sidebar. They said it might take a day for the ads to show up, but that the BlogHer Publishing Network logo and frame should show up immediately. It’s now been enough time for it to process on their end, but it’s still not showing up. There’s just a blank space on my sidebar (but not even blank space large enough for an ad). My google adsense IS showing up, though, which makes me think it isn’t a javascript issue.

Any ideas?