Blog Not Linking Correctly

I was reading a fellow AWer's blog. She kindly has my blog linked in her sidebar, but I noticed that Blogger's blog roll says that my last post was from a year ago--when in fact, it was yesterday.

Is there a setting problem I have wrong? I tried to looking it up in the Blogger Help Forums, but couldn't even think of a succinct way of phrasing the question. It could be the feed, maybe? Can anybody help? Thanks!